CUMACEA (CRUSTACEA: PERACARIDA) FROM BELIZE

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1 Travaux du MusCutn National d'histoire Naturelle ((Grigore Antipa)) Vol. XLIV pp CUMACEA (CRUSTACEA: PERACARIDA) FROM BELIZE IORGU PETRESCU Abstract. First record of Cumacea from Belize. 25 found species, eight species new to science: Cyclaspis kensleyi, C. sterreri, Campylaspis caribbeana, Cumella biserrata, C. murariui, C. ruetzleri, Schizotrema watlingi and Oxyurostylis bacescui. Revisions of Cyclaspis goesi (Sars, 1871) (syn. Sfephanomma goesii Sars, 1871), Cyclaspis granulata (Radha Devi & Kurian, 1981) (syn. Pseudocyclaspis granulata Radha Devi & Kurian, 1981), Cyclaspis jamaicensis Petrescu, Iliffe & Sarbu, 1993, Cyclaspis unicornis Calman, 1907 [synonymized with Cyclaspis goesi (Sars)] and Vaunthompsonia minor Zimmer, 1944 (synonymized with V. cf. cristata Bate). Designated the neotype of Cyclaspis goesi (Sars, ). Rtsumt. La premitre mention des cumacts de Belize 25 espkces trouvkes, huit esptces nouvelles pour la science: Cyclaspis kensleyi, C. sterreri, Campylaspis caribbeana, Cumella biserrata, C. murariui, C. rztetzleri, Schizotrema watlingi et Oxyurostylis bacescui. Rtvision des esptces Cyclaspis goesi (Sars, 187 1) (syn. Stephanomma goesii Sars, 1871), Cyclospis granulata (Radha Devi & Kurian, 1981) (syn. Pseudocyclaspis granulata Radha Devi & Kurian, 1981), Cyclaspis jamaicensis Petrescu, Iliffe & Sarbu, 1993, Cyclaspis unicornis Calman, 1907 (synonimiske avec Cyclaspis goesi Sars) et Vaunthompsonia minor Zimmer, 1944 (synonimiste avec V. cf. cristata Bate, 1858). On a dtsignt le ntotype pour Cyclaspis goesi (Sars, 1871). Key words: Cumacea, Belize, systematics, new species, distribution. INTRODUCTION Belize has the biggest reef structure in the western tropical Atlantic with the highest diversity of reef fauna from the entire Caribbean area. This diversity was studied within the programme "Caribbean Coral Reef Ecosystems" of the National Museum of Natural History from Washington (Rutzler & McIntyre, 1982). Several groups of invertebrates were investigated, but only Isopoda Anthuridea from Crustacea Peracarida was studied by Kensley (1982). Sars (1871, 1873) was the first scientist who published information on Cumacea from the tropical western Atlantic. He described four new species from the Antilles. Since those initial reports, other numerous taxa were mentioned from Bermuda (Biicescu, 1992 b, Bgcescu & Iliffe, 1991, Hansen, 1895, Markham & Sterrer, 1986, Petrescu & Sterrer, 2001), Gulf of Mexico - USA and Mexican coasts (Biicescu, 1971, Bacescu & Muradian, 1977 a, b, Calman, 1907, 191 1, 1912, Donath-Hernandez, 1988 a, b, 1992, Muradian-Ciamician, 1980, Omholt & Heard, 1979, Radha Devi & Kurian, 1981, Roccatagliata & Heard, 1995, Watling, 1977, Zimmer, 1944), Bahamas - Abaco, Andros (Petrescu, 1996, Petrescu & Iliffe, 1992), Cuba (Biicescu, 1971, Biicescu & Muradian, 1977 a, b, Ortiz & Lalana, 1988), Jamaica (Petrescu, Iliffe & Sarbu, 1993, 1994), St. Martin (Sars, 1871, 1873), Antilles - Bonaire, Curaqao (Bicescu & Muradian, 1977 a), Martinique (Zimmer, 1944). Most of the genera and species belong to the family Nannastacidae. Up to this moment 98 species were reported from this area, 53 from shallow waters (29 of the genus Cumella). There wasn't any previous data about the Cumacea of Belize.

2 142 IORGU PETRESCU Ferraris (1982) mentioned only the group of Cumacea in the list of surface zooplankton from Carrie Bow Cay. Knowledges on Belize taxa could be very important for understanding the evolution of Cumacea fauna in the entire western tropical Atlantic. My collecting trip took place around Carrie Bow Cay Field Marine Station of Smithsonian Institution, my project being included in the "Caribbean Coral Reef Ecosystems Program" and financed by the Smithsonian Institution. MATERIAL AND METHODS This Belize coral reef barrier shows a huge diversity of habitats: sandy cays, mangrove islands, lagoons with sandy bottoms mainly with sea grass (Thalassia testudinum) and Syringodiumjlliforme, a large diversity of reef habitats. Most of the sandy bottoms in Carrie Bow Cay are in shallow depths. I and my wife Angela collected 46 samples (two of them without cumaceans) from Carrie Bow Cay, Manatee Cay, Cat Cay (from Pelican Cays), Man of War Cay, Twin Cays Curlew Bank and from South Water Cay (Fig. 1). Material represented by approx. 1,500 specimens was collected with a hand net (0.2 mm mesh size) by snorkelling at 1-6 m deep, between June 21S' and July 3rd We investigated as much as possible the diverse habitats including the cryptic ones like sponges and empty shells of Strombus gigas (Tab. 1). The holotypes are deposited in the collection of National Museum of Natural History, Smithsonian Institution; paratypes are deposited in the collections of the museum from Washington (USNM) and of the "Grigore Antipa" National Museum of Natural Histoy from Bucharest (MNINGA - Muzeul National de Istorie Naturali "Grigore Antipa ). Reference collections of non-type specimens are present in the museums from Washington, Bucharest and Belize (collection numbers mentioned only for Bucharest). Collecting stations Table I

3 CUMACEA (CRUSTACEA) FROM BELIZE Cat Cay, Pelican Cays, entrance of lagoon Cat Cay, Pelican Cays, entrance of lagoon Cat Cay, Pelican Cays,inner reef, NE of #4 1 Cat Cay, Pelican Cays, outer reef, NEof#41 Cat Cay, Pelican Cays, outer reef, NEof#41 Carrie Bow Cay, western coast Carrie Bow Cay, western coast Sand with Thalassia Sand Sand with coral rubbles Sand with Thalrrssia Sand with Thalassia and Syringodium Sand with Padina vickersiae and Galaxaura sp. Sand between brain corals

4 144 IORGU PETRESCU.. :. :. :,:.! Curlew Bank - Fig. 1 -Collecting places from surroundings of Carrie Bow Cay, Belize.

5 CUMACEA (CRUSTACEA) FROM BELIZE 145 RESULTS Collected cumaceans belong to 25 species, eight of them being new to science, from seven genera and three families. Family Bodotriidae Cyclaspis goesi (Sars, ) (Figs 2,3) Stephnnonrma goesii Sars, 1871 : 808; Sars, 1873: 16, pl. 4, figs 17-28; Calman, 1907: 14; Stebbing, 1913: 40-41, fig. 17; Bicescu, 1988: 97. Cyclnspis unicornis Calman, 1907: 7, 14, pl. 5, figs 9-1 1; Zimmer, 1944: 129; Roccatagliata, 1986: 13 1; Bficescu, 1988: 69. Material. Neotype, female, sta. 46, no. USNM ; other material: 2 99, 8 rnanca, sta. 6, no. MNINGA CUM 418; 1 rnanca, sta. 7; 1 rnanca, sta. 22; 1 rnanca, sta. 23, no. MNINGA CUM 419; 1 rnanca, sta. 33, no. MNINGA CUM 420; 3 99, 1 immat. d, 3 rnanca, sta. 46; 1 rnanca, Jamaica, no. MNINGA ; Holotype of Cyclaspis unicornis (Zoologisk Museum, Copenhagen), immat. 9, no. ZMUC CRU 8525; Neotype of Cyclaspis dentifrons Zimmer, 1944 (National Museum of Natural History, Washington), adult d, no.usnm Description of neotype Sars described Stephanomma goesii as a new genus and a new species based on an adult female collected by Dr. A. Goes from St. Martin. His descriptions, in Latin and in Swedish, were taken back in English by Stebbing (1913). After verifying in the collections from Stockholm (mentioned by Sars as place of deposit) and Oslo museums of natural history, I established that Sars' specimen no longer exist. Body (Fig. 2 A), integument much indurate, finely facetted, pitted and reticulated. Length: approx mm. Carapace (Fig. 2 A, B), with more indurate integument than the rest of body, with a median dorsal keel, an elevation provided with a sharp tooth on ocular lobe behind the crown of lenses; elevation is flanked by a pair of small depressions; a pair convex keels in anterior half, between the ocular lobe and antero-ventral tooth; ocular lobe with a crown of eight lateral lenses (one frontal pair) and three median ones; pseudorostral lobes with serrated anterior margin not meeting in front of ocular lobe, clearly separated from the ocular lobe; anterior corner with a strong tooth; short serration on antero-ventral margin. Pereon (Fig. 2 A), first pedigerous segment is present, shorter than the rest, second with marked side-plates extending forwards over hind margin of carapace, third and fourth with similar side-plates but extending backwards; second to fifth with median carina. Pleon (Fig. 2 A), first to fifth segment with three strongly marked lateral carinae; sixth segment with a dorsal median carina. Antenna 1 (Fig. 2 C, D), with short articles, basal article of peduncle longer than the other two, distal article longer than median one, main flagellum with two very short articles, both with a pair of aesthetascs, accessory flagellum shorter than basal article of main one.

6 146 IORGU PETRESCU Fig. 2 - Cyclaspis goesi (Sars, 1871). Female: A, body, lateral view; B, carapace, dorsal view; C, antenna 1; D, antenna 1, detail; E, antenna 2; F, maxilliped 1; G, detail of basis endite; H, maxilliped 2. Scales(inmm):A, l;b,0.5;c,h,0.2;d,g,o.i;e,f,0.2.

7 CUMACEA (CRUSTACEA) FROM BELIZE 147 Antenna 2 (Fig. 2 E), with two pappose setae. Maxilliped I (Fig. F, G), endite of basis with blunt stout setae and a robust large seta; carpus with flattened hand-like setae; propodus, 3 times longer than dactylus, with a short plumose seta; round dactylus with several stout apical setae. Maxilliped 2 (Fig. 2 H), basis and bulky merus with one pappose seta; carpus longer than merus and a little shorter than propodus, with forked setae on inner margin; propodus with three forked setae on inner margin and a short plumose seta on outer distal corner; dactylus with a robust terminal seta. Maxilliped 3 (Fig. 3 A), basis with a long outer process, exceeding menlscarpus articulation, with three plumose long apical setae and plumose, shorter ones, on both sides; merus with a long and large outer process exceeding propodusdactylus articulation, with a plumose apical seta; short and bulky propodus a little longer than dactylus; dactylus with short apical setae. Four-articled natatory exopod. Pereopod 1 (Fig. 3 B), slender, basis a little longer than a third of entire pereopod, with serrated inner margin; ischium with four strong teeth on outer margin; merus also with a serrated outer margin; carpus subequal with propodus; dactylus 0.6 of propodus. Exopod smaller than in maxilliped 3. Its attachment is displaced far down because of the developed marsupium. Pereopod 2 (Fig. 3 C), basis shorter than half of pereopod; merus as long as carpus and propodus together; dactylus 1.66 times longer than propodus, with three microserrated robust apical setae. Pereopod 3 (Fig. 3 D), basis with serrated margins longer than half of pereopod; merus subequal with carpus; carpus with a small outer process with a robust long seta; dactylus with an apical stout seta. Pereopod 4 (Fig. 3 E), basis also with serrated shorter than in previous pair; merus a little longer than carpus. Pereopod 5 (Fig. 3 F), basis with serrated margins, much shorter than in previous pairs; carpus longer than merus. Uropod (Fig. 3 G), peduncle with serrated inner margin, 1.3 longer than last pleonite and its rami; exopod as long as endopod, with two short subterminal setae and a terminal robust longer one; endopod with three stout setae on inner serrated margin, a robust long terminal seta. Remarks Most of the characters are like in Sars' descriptions, but there are some differences. Sars considered that the pseudorostral lobes are not separated from the carapace even by a suture, our specimens have clearly separated pseudorostrum; antenna 1 with articles of peduncle subequal in Sars, proximal article longer than the rest in our specimens; accessory flagellum undeveloped versus small one; maxilliped 3 with a short basis (scarcely longer than ischium and merus combined) without an outer process versus basis as long as half of maxilliped, with a well developed process; uropodal endopod with five stout inner setae instead of three, Sars' specimen with endopod devoid of his apical seta. In his remarks on Cyclaspis unicornis Calman (1907) suspected that "Sars has been misled by the ocular lobe reaching quite to the tip of the pseudorostrum, and that Stephanomma will be found not to differ generically from some of the species at present reffered to Cyclaspis". I agree his point of view and I consider that Sars' species goesi must be included in the genus Cyclaspis and the genus Stephanomma Sars, 1871 must be invalidated. Haye (2002) still mentions genus Stephanomma Sars within the family Bodotriidae

8 148 IORGU PETRESCU Fig. 3 - Cyclaspis goesi (Sars, 1871). Female: A, maxilliped 3; B, pereopod 1; C, pereopod 2; D, pereopod 3; E, pereopod 4; F, pereopod 5; G, uropod. Scales (in mm): A,C-G, 0.3; B, 0.5.

9 CUMACEA (CRUSTACEA) FROM BELlZE 149 with short pseudorostral lobes not meeting in front of ocular lobe and male with five pairs of pleopods as the main morphologic characters. Holotype of Cyclaspis unicornis has a similar pseudorostrum, ocular lobe, a dorsal keel on carapace with a tooth, antero-ventral margin serrated with an anterior tooth like in our specimens; also similar pereopods and uropods (endopod with four stout setae like in Sars, three in Belize females). Integument is quite uncalcified, especially of pereon and pleon, almost transparent; integument of carapace with silt and dust, so it is impossible to distinguish its aspect. Hardly visible lateral carinae especially on first pleonite (present on first five pleonites in C. goesi). Rcst of characters like in Calman's description. Calman compared his new species with C. uniplicata that he described from Thai waters in the same year, but not with Sars' species whom I believe that he didn't examine at all. The rnanca from Jamaica was erroneously identified by Petrescu, Iliffe and Sarbu (1993) as Cyclaspis unicornis Calman, being in fact C. goesi. Roccatagliata (1 986) mentioned that C. dentifrons Zimmer is closely allied to C. unicornis. He studied only the holotype of later species, a subadult female in bad condition, but nothing else, without any other material of Calman's or of Sars' species. So, even he stated that there are some differences between C. dentifrons and Cyclaspis unicornis, he couldn't confirm if those "two species should remained separate on the basis of the two differences mentioned above (second thoracic segment more smoothly to the rear and mid-dorsal tooth projects more horizontally, thus forming a more closed notch with the anterior outline of the carapace in C. dentifrons)". According to our specimens I could confirm Roccatagliata's supposition that C. dentifrons is a different species than C. goesi (Sars) (synonymized with C. unicornis Calman). The lateral ridges of the pleon are also a strong evidence of their separate taxonomic status. Correct spelling of species' name is "goesi" and not "goesii", because it was dedicated to A. Goes. I choosed a specimen from Belize for neotype designation because it is in better state of conservation than the type specimen identified by Calman as Cyclaspis unicornis even its collecting place (St. John, U.S.Virgin Islands) is nearer to type locality (St. Martin) than Belize. First record of the species from Belize and first record of the species after 130 years since the original catching (Sars, 187 1). Cyclaspis granulata (Radha Devi & Kurian, 198 1) (Figs 4,5) Pseudocyclaspis granulata Radha Devi & Kurian,l981 : 54-56, figs 1,2; Bicescu, 1988: 96. Material. 2 manca, sta. 1; 11 rnanca, sta. 6; 1 9, sta. 10; 8 rnanca, sta. 15; 1 rnanca, sta. 17, no. MNINGA CUM 405; 4 rnanca, sta. 18, no. MNINGA CUM 406; 1 rnanca, sta: 19, no. MNINGA CUM 407; 2 rnanca, sta. 20, no. MNINGA CUM 408; 1 rnanca, sta. 22, no. MNINGA CUM 409; 2 99, sta. 23; 19, 1 rnanca, sta. 24, no. MNINGA CUM 410; 1 9, 1 irnmat. d, 2 rnanca, sta. 36; 1 dissected 9, sta. 37, no. 'MNINGA CUM 411; 1 d, 2 immat. d'd, 3 rnanca, sta. 37; 1 d, sta. 37, no. MNINGA CUM 412; 1 rnanca, sta. 38, no. MNINGA CUM 413; 1 immat. 6, sta. 41, no. MNINGA CUM 414; 3 rnanca, sta. 44, no. MNINGA CUM 415; 2 rnanca, sta. 45, no. MNINGA CUM 416; 1 rnanca, sta. 46, no. MNINGA CUM 417; 1 9,

10 150 IORGU PETRESCU Fig. 4 - Cycluspisgranula~n (Radha Devi & Kurian, 198 1). Female: A, body, lateral view; B, carapace, dorsal view; C, antenna I; D, maxilliped 3; E, pereopod I; F, pereopod 2; G, pereopod 3; H, pereopod 4; I, pereopod 5; J, uropod. Scales (in mm): A, I; B, I; C, 0.2; D,G-J, 0.3; E,F, 0.5.

11 CUMACEA (CRUSTACEA) FROM BELIZE 151 Fig. 5 - Cyclaspis granulata (Radha Devi & Kurian, 1981). Male: A, body, lateral view; B, carapace, dorsal view; C, lnaxilliped 3; D, pereopod I ; E, pereopod 2; F, pereopod 3; G, pereopod 4; H, pereopod 5; I, uropod. Scales (in mm): A, 1; B, 0.5; C,E-I, 0.3; D, 0.5.

12 152 IORGU PETRESCU Jamaica, sta , no. MNINGA ; 1 9,l 6, Jamaica, sta , no. MNINGA Description Radha Devi and Kurian described the species as belonging to a new genus, Pseudocyclaspis, based only on one male. I found numerous adults (both sexes) and manca from 19 samples from Belize. I complete the original description with females. Body (Fig. 4 A) with granulous integument. Length: 4.8 mm. Carapace (Fig. 4 A, B), an oblique crest rises between the ventral posterior comer towards the ocular lobe; dorsal median crest up to the ocular lobe which continues up to the tip of pleon; ocular lobe with eight lateral and two larger median lenses; pseudorostrum no longer than ocular lobe, with marked notch. Pleon (Fig. 4 A, J), median dorsal crest evidently serrated on the fifth pleonite, also with a lateral median crest on each pleonite. Antenna 1 (Fig. 4 C), peduncle with short, robust, articles, main flagellum with three articles. Maxilliped 3 (Fig. 4 D), basis with a large outer process exceeding the meruscarpus articulation with plumose setae especially on its inner margin and two apical longer plumose setae; inerus with enlarged outer process with serrated margins; bulky propodus with serrated margins, longer than slender dactylus. Pereopod I (Fig. 4 E), basis shorter than half of pereopod, carpus shorter than propodus (0.8), but longer than dactylus. Pereopod 2 (Fig. 4 F), basis as long as half of pereopod; carpus shorter than merus, about 2 times longer than propodus, with two stout setae on distal outer comer; dactylus, three times longer than propodus, with lateral microserrated stout setae and with three other longer terminal ones (middle one longer). Pereopods 3-5 (Fig. 4 G- I), slender, with progressively shorter basis and longer carpus. Uropod (Fig. 4 J), short and large peduncle, 1.I longer than last pleonite, 1.39 times longer than exopod, with serrated glabrous margins; subequal rami, exopod with two microserrated stout terminal unequal setae, serrated inner margin; endopod with strongly serrated inner margin with two short setae and a terminal microserrated longer one (longer than in exopod). Remarks My males are almost similar to the male from the Gulf of Mexico described by Radha Devi and Kurian (1981). But there are few differences as follows. Carapace (Fig. 5 A, B), the two oblique crests are more clearly separated, frontal one, shorter (Radha Devi and Kurian mentioned only a lateral ridge, but in their fig. 1 appeared two ridges almost fused). Maxilliped 3 (Fig. 5 C), like in female, with serrated anterior margin of merus, not mentioned in original description. Pereopod 1 (Fig. 5 D), carpus longer than propodus (1.4: I), versus equal. Pereopod 2 (Fig. 5 E), basis as long as the rest of pereopod (instead longer), not serrated. Uropod (Fig. 5 I), peduncle shorter, 1.2 times longer than last pleonite instead of 1.45, with serrated margins; rani like in Radha Devi and Kurian, exopod with serrated margins, with three terminal stout setae, two of them longer, microserrated, with plumose setae on inner margin; endopod with serrated margins, with six short plumose setae and three short simple stout setae on inner margin, two terminal microserrated unequal robust setae.

13 CUMACEA (CRUSTACEA) FROM BELIZE 153 Main characters from the diagnosis of Pseudocyclaspis Radha Devi and Kurian are: "12 well developed ocelli in the eye lobe. Five pedigerous segments visible in lateral view, the first very short. Second pereopod with third joint distinct. Endopod of uropod simple with terminal and subterminal spines. This genus is related to Bodotria Goodsir and Cyclaspis Sars. In the presence of a terminal and a subterminal spine in the uropod, it agrees with Bodotria, but in the presence of frontal pair of ocelli and the distinct third segment for the second pereopod it is related more to Cyclaspis than Bodotria". They based their statement on Harada's (1 967) comparison between Bodotria and Cyclaspis as they mentioned in the paper. But what revealed the figures of Radha Devi and Kurian (op.cit.)? Ocular lobe has 12 lenses, with a frontal pair (10 lenses with a frontal one in Bodotria, 11 lenses with a frontal pair in Cyclaspis as Harada (1967) mentioned); our specimens have a number and disposition of lenses as usual for Cyclaspis (eight marginal ones and three, larger, median). In fact only four pedigerous segments are visible in lateral view, not five, the first one is just the articulation between carapace and second segment, as in Cyclaspis. Pereopod 2 is also like in Cyclaspis, with distinct basis-ischium articulation. Uropods of Cyclaspis have almost three different shapes: non acute with terminal and subterminal robust setae (spines in Radha Devi), acute with terminal seta (these two types are more frequent in western Atlantic) and acute without any terminal seta (mainly from the western Pacific Ocean). Harada (op.cit.) took into consideration only the last type when he compared Bodotria and Cyclaspis. So, such uropods like in Bodotria also exist in Cyclaspis as well. In fact the only different character of Pseudocyclaspis remained ocular lobe with 12 lenses instead of 11. Our specimens from Belize which are almost like P. granulata have 11 lenses in a typical disposition for Cyclaspis, with a frontal pair of lenses. The authors of the species mentioned that holotype (the only existing specimen) will be kept in the Zoological Survey of India, as the other species of the genus, P. mexicansis Radha Devi & Kurian (op.cit.). I didn't succeed to find any of them. Genus Pseudocyclaspis is represented only by these two species. After my oppinion, even wifhout examining the holotypes from Cochin, India, this genus must be rejected, both species belonging to genus Cyclaspis. Haye (2002) considers genus Pseudocyclaspis as a valid one. Cyclaspis granulata (Radha Devi & Kurian) is related to Cyclaspis variabilis Roccatagliata (1986) from Brazilian coast. It differs by antenna 1 with fewer aesthetascs, pereopod 1 with longer carpus, shorter and stronger uropods with fewer setae in both sexes. Cyclaspis jamaicensis Petrescu, Iliffe & Sarbu, 1993 (Fig. 6) Material. 1 d, sta. 44; 19, sta. 46. Type material. Holotype, immat. d, no. MNINGA 49508, paratype, 9, no. MNINGA Description of male This species was described from Jamaica based on immature male (holotype) and female (paratype). I found a female similar to C. jamaicensis in Carrie Bow Cay and also an adult male. I give here the description of the adult male. Body (Fig. 6 A), elongated, with well-calcified integument, granulous with ridges on carapaces and with scales and ridges in rest. Length: 6.5 mrn.

14 154 IORGU PETRESCU Fig. 6 - Cyclaspis jamaicensis Petrescu, Iliffe & Sarbu, Male: A, body, lateral view; B, carapace, dorsal view; C, articulation between two pereonites; D, maxilliped 3; E, pereopod 1; F, pereopod 2; G, pereopod 3; H, pereopod 4; I, pereopod 5; J, uropod. Scales (in mm): A, I; B, I; C,E,F, 0.5; D,G-J, 0.5.

15 CUMACEA (CRUSTACEA) FROM BELIZE 155 Carapace (Fig. 6 A, B), with at least 11 longitudinal ridges on each side, never reaching the ocular lobe, dorsal keel, unique on ocular lobe and last pleonite, double in rest; ocular lobe with characteristic number (1 1) and disposition of lenses; represents 0.24 from the entire body length. Pereon with a median double dorsal keel and three pairs of parallel other ones, each pereonite with plumose setae on inner margin of its plate. Pleon with postero-ventral corner of each segment (excepting fifth and sixth) more elevated, covering the articulation between segments and the articulation of the pleopods, entire posterior margin of those segments with plumose setae; sixth pleonite with a median keel and a less stronger one on each side. Maxilliped 3 (Fig. 6 C), basis longer than rest of maxilliped, with an outer process with strong teeth on inner margin, with two pappose setae on its top and plumose setae on both sides; long ischium with teeth on inner margin; inerus with a well developed outer process with serrated inner margin; dactylus with a robust apical seta. Exopod with massive basal article, second, with long plumose seta, is short. Pereopod I (Fig. 6 D), basis shorter than half of pereopod, with seven stout setae on inner margin; ischium subequal with merus; carpus shorter than propodus (0.7: l), subequal with dactylus; dactylus with short stout apical setae. Exopod like in maxilliped 3, but a little smaller. Pereopod 2 (Fig. 6 E), almost half of first pair, basis a little shorter than half of pereopod, with serrated inner margin; merus a little shorter than carpus and propodus together; carpus with two strong microserrated robust setae; dactylus 2.3 times longer than propodus. Pereopods 3-5 (Fig. 6 F-H), with progressively shorter basis and longer carpus, with serrated margins, carpus with a small inner apical elevation with two robust setae; dactylus with a distinct robust apical seta. Uropod (Fig. 6 I), peduncle 1.3 times longer than last pleonite, with a median keel, with strong serration on inner margin, proximal half with groups of more elevated serration between plumose setae, distal half less serrated, with groups of two plumose setae, 1.14 times longer than exopod; exopod a little longer than endopod, with two subterminal short stout setae and a terminal one a little longer, plumose setae on inner margin, keel from peduncle continues up to its end; serrated inner margin of endopod with 11 short stout setae on its proximal 2/3rd and with stronger serration in rest, a subterminal stout seta and a terminal one, little longer, like in exopod. Remarks My male from Belize resembles the female and the immature male from Jamaica as follows: 11 lateral ridges on each side of carapace as in immature, lateral ridges on pereon and pleon, same kind of dorsal keel; maxilliped 3 with teeth on process of basis; stout setae on basis of first pereopod as in both sexes (more numerous in adult male, seven instead one), same length and ratio of carpus, propodus and dactylus as in immature one, pereopods 3-5 similar; uropodal peduncle with a median keel (double in female), uropodal rarni are acute with short terminal setae, endopod with stout setae on inner serrated margin, 11 in adult male, two respectively three in immature male and female. This species seems to be more related to C. kensleyi n.sp.: same kind of pleonites (with more setae on C. jamaicensis), similar maxilliped 3 (process of basis with more teeth in C. jamaicensis), basis of first pereopod with stout setae (longer carpus and dactylus in C. jamaicensis), pereopods 2-5, uropods with that groups of characteristic

16 156 IORGU PETRESCU serration on peduncle and acute unequal rami (peduncle longer in C. jamaicensis, its endopod with a portion of the inner margin (113) devoid of stout setae). The main difference is the presence of double keel and lateral ridges from carapace, pereon and pleon, pereopod 1 and uropodal endopod. Previously recorded from Jamaica (Petrescu, Iliffe and Sarbu, 1993). Cyclaspis kensleyi n, sp. (Fig. 7) Material. Holotype, male, no. USNM ; paratype, 1 immat. 6, sta. 18, no. USNM Type locality. Belize, Carrie Bow Cay, sta. 13, westem coast, 3 m, from empty shells of Strombus gigas, collected on Etymology. Species is dedicated to Dr. Brian Kensley, Head of Invertebrate Department from the National Museum of Natural History, Smithsonian Institution, world specialist in Isopoda, as a sign of gratitude for his warm support of this project. Description Body (Fig. 7 A), with well calcified integument. Length: 5.8 rnrn. Carapace (Fig. 7 A, B), longer than high (2: l), represents 0.27 of entire body, with a median crest that ends on the sixth pleonite; ocular lobe with eight lateral and two larger median lenses; pseudorostral lobes not exceeding ocular lobe, marked notch. Pleon (Fig. 7 C), each pleonite has the posteroventral comer much extended towards the next one, with serrated margin and with long setae, partially covering next pleonite and the articulation of pleopods. Maxilliped 3 (Fig. 7 D), basis longer than half of maxilliped, its outer process exceeds merus-carpus articulation, with plumose setae on both sides, a spine and a long plumose seta on its top, two spines on inner distal corner; ischium, merus and carpus with serrated inner margins; merus with an enlarged outer process with serrated margins; dactylus with two microserrated stout terminal setae. Basal article of exopod longer than flagellum, its first article short. Pereopod 1 (Fig. 7 E), basis longer than rest of pereopod, five stout setae on inner margin; carpus a little shorter than propodus (0.89); propodus two times longer than dactylus; dactylus with short and slender terminal setae. Slender exopod, basal article as long as flagellum, similar flagellum. Pereopod 2 (Fig. 7 F), slender basis, shorter than half of pereopod; carpus a little longer than propodus, with a long robust microserrated seta; dactylus 3.6 times longer than propodus, with short lateral setae and three terminal ones (median longer and microserrated). Pereopods 3-5 (Fig. 7 G-I), with slender articles, with progressively shorter basis and longer carpus. Uropod (Fig. 7 J), peduncle 1.19 times longer than last pleonite and exopod, with a median crest, serrated inner margin (proximal half with three groups of serration more elevated than the rest) with numerous plumose setae, groups of two setae in the distal half; acuminate rami, exopod a little longer than endopod, with an outer crest, inner serrated margin with plumose setae, a subterminal short stout one and terminal, robust longer simple seta; endopod, larger than exopod, with serrated margins, ten short stout setae on inner margin and a robust terminal seta shorter than in exopod.

17 CUMACEA (CRUSTACEA) FROM BELIZE 157 Fig. 7 - Cyclaspis kensleyi n. sp. Male: A, body, lateral view; B, carapace, dorsal view; C, articulation of pleonites 3 with 4; D, maxilliped 3; E, pereopod 1; F, pereopod 2; G, pereopod 3; H, pereopod 4; I, pereopod 5; J, uropod. Scales (in mm): A, 1; B, I; C, 0.5; D,F-J, 0.5; E, 0.5.

18 158 IORGU PETRESCU -- - Remarks Cyclaspis kensleyi n. sp. resembles C. jamaicensis Petrescu, Iliffe & Sarbu, Cyclaspis alba Roccatagliata (1986), C. jonesi Roccatagliata (1985) and C. variabilis Roccatagliata (1986), all from the Brazilian waters. It differs by: carapace without that oblique lateral crest; pereopod 1 with stout setae on basis and with smaller basal article of its exopod; more characteristic are the uropods with a strong serrated peduncle, acute rami like in C. variabilis (not like in C. alba and C. jonesi), but with uniform stout setae on inner margin of endopod instead two types of setae. For differences between C. kensleyi and C. jamaicensis see the previous remarks. Cyclaspis reticulata Roccatagliata, 1985 Material. 1 manca, sta. 11, no. MNINGA CUM 402; 2 manca, sta. 23; 1 manca, sta. 42, no. MNINGA CUM 403. Remarks First record from the Caribbean Sea, anteriorly known only from Brazil. Cyclaspis simonae Petrescu, Iliffe & Sarbu, 1993 Material. 1 9, sta. 6; 1 9, sta. 37, no. MNINGA CUM 404. Remarks Male holotype of C. jamaicensis Petrescu, Iliffe & Sarbu (1993) from the original description of the Jamaican material is considered to belong to this species (becomes paratype). Previously mentioned only from Jamaica (Petrescu, Iliffe and Sarbu, 1993). Cyclaspis sterreri n. sp. (Fig. 8) Material. Holotype, female, no. USNM Type locality. Belize, Carrie Bow Cay, sta. 6,4 m, sand between living corals, collected on Etymology. Species dedicated to Dr. Wolfgang E. Sterrer, Director of the Natural History Museum from Bermuda, world specialist in Sipunculid worms, as a sign of gratitude for his kind support and suggestions regarding this project. Body (Fig. 8 A) covered with a strong calcified integument. Length: 2.5 rnm. Carapace (Fig. 8 A, B), represents 113 of entire body, with a median dorsal carina which continues up to extremity of pleon and with six lateral crests on each side, not reaching the ocular lobe; ocular lobe with three pairs of lateral and two pairs of median lenses; pseudorostrum not expanding out of ocular lobe with a marked notch. Maxilliped 3 (Fig. 8 C), basis longer than half of maxilliped, with an outer acute process plumose setae on both sides and with two plumose apical setae exceeding the merus-carpus articulation; carpus with an enlarged outer process with serrated margin; minute dactylus with slender terminal setae. Fully developed exopod with flagellum 4-articled, basal article a little shorter. Pereopod 1 (Fig. 8 D), basis longer than half of pereopod, carpus and propodus subequal (1.6:1.5), propodus two times longer than dactylus. Slender exopod than in maxilliped.

19 CUMACEA (CRUSTACEA) FROM BELIZE 159 Fig. 8 - Cyclaspis sterreri n. sp. Female: A, body, lateral view; B, carapace, dorsal view; C, maxilliped 3; D, pereopod 1; E, pereopod 2; F, pereopod 3; G, pereopod 4; H, pereopod 5; I, uropod. Scales (in mm): A,B, 0.5; C,F-I, 0.2; D,E, 0.3.

20 160 IORGU PETRESCU Pereopod 2 (Fig. 8 E), basis a little shorter than half of pereopod, carpus with an outer distal stout microserrated seta as long as propodus and two times shorter than dactylus, dactylus with three terminal stout pectinated setae. Pereopods 3-5 (Fig. 8 F- H), with long simple setae on ischium and merus, short articles, dactylus with a terminal long robust seta. Uropod (Fig. 8 I), peduncle a little shorter than first pleonite (0.93), with serrated inner margin, 1.2 times longer than exopod; exopod longer than endopod (1.12), with three short terminal setae, median one longer and stronger; endopod with serrated inner margin and two terminal short stout setae, longer one is microserrated. Remarks Cyclaspis sterreri n. sp. resembles Cyclaspis simonae Petrescu, Iliffe & Sarbu from Jamaica (1993), but it has fewer lateral ridges and shorter uropods. Key for the species of Cyclaspis from Belize 1 a Carapace with a dorsal spine... Cyclaspis goesi (Sars, 1871) lb - Carapace without spines a - Carapace with lateral ridges and reticulate pattern b Carapace without lateral ridges and reticulate pattern...6 3a - Carapace with ridges b Carapace with reticulate pattern... Cyclaspis reticulata Rocatagliata, a - Carapace with more than six lateral ridges b - Carapace with six lateral ridges... Cyclaspis sterreri n.sp. 5a - Carapace with lateral ridges, acute uropodal rami... Cyclaspis jalnaicensis Petrescu, Iliffe & Sarbu, b - Carapace with lateral ridges, nonacute uropodal rami... Cyclaspis simonae Petrescu, Iliffe & Sarbu, a - Carapace with two lateral oblique crests, basis of pereopod 1 without stout setae, nonacute uropodal rami... Cyclaspis granulata Radha Devi & Kurian, b - Carapace without lateral crests, basis of pereopod 1 with stout setae, acute uropodal rami, endopod with a special inner serration... Cyclaspis kensleyi n.sp. Vaunthompsonia cf. cristata Bate, 1858 (Figs 9, 10) Vaunthompsonia cristalrr Bate, 1858: 203. V. cristata: Sars, 1879: 13-22; Calman, 1907: 29; Zimmer, 1940: 264; Fage, : 26; BBcescu, 1988: Vaunthompsonia minor Zimrner, 1944: , figs 1-9; BBcescu, 1988: 128; Valentin, 1982: 17. Material. 4 99, 1 immat. d, sta. 10; 4 99, 3 juv, sta. 11; 1 9, sta. 19, no. MNINGA CUM 421; 3 99, sta. 22, no. MNINGA CUM 422; 2 9Q,2 rnanca, sta. 23, no. MNINGA CUM 423; 1 9, sta. 24, no. MNINGA CUM 424; 2 99, sta. 25; 1 9, sta. 36, no. MNINGA CUM 425; 3 rnanca, sta. 38, no. MNINGA CUM 426. Description Zimrner described this species based on both sexes. He figured only the frontal half of carapace (dorsal and lateral view) and uropod with last pleonite of female and antenna 1, pereopods 1 and 2 and uropod with last pleonite of male. I

21 CUMACEA (CRUSTACEA) FROM BELIZE 161 Fig. 9 - Vuunthompsonia cf. cristata Bate, Female: A, body, lateral view; B, carapace, dorsal view; C, antenna 1; D, antenna 2; E, mandible; F, maxilla 1; G, maxilla 2; H, maxilliped 1. Scales (inmm): A, l;b,0.5;c-g,0.2;h,o.l.

22 162 IORGU PETRESCU Fig Vnunthompsonia cf. cristutu Bate, Female: A, maxilliped 2; B, maxilliped 3; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, uropod. Scales (in mm): A,B, 0.2; C,E-H, 0.3; D, 0.2.

23 CUMACEA (CRUSTACEA) FROM BELIZE 163 found only females and an immature male in Belize. I complete the original description with mouth pieces, maxillipeds and pereopods 3-5. Antenna 2 (Fig. 9 D), with two pappose setae. Mandible (Fig. 9 E), pars incisiva and lacinia mobilis with four teeth, 12 plumose spine-like setae on inner margin, long truncated pars molaris with an anterior tooth. Maxilla I (Fig. 9 F), outer lobe with serrated setae, palpus no longer than its two unequal filaments. Maxilla 2 (Fig. 9 G), ending articles with simple apical setae, pectinated robust setae on tip of protopodus, numerous simple setae on inner margin of protopodus up to the articulation with the second article. Maxilliped I (Fig. 9 H), endite of basis with two bifid flattened setae; carpus with flattened hand-like setae on inner margin; propodus with a short plumose seta; massive dactylus with two apical setae. Maxilliped 2 (Fig. 10 A), with serrated margins, basis with a plumose seta on outer comer and a shorter median one; merus with a plumose seta; carpus shorter than propodus, with two forked setae on inner margin; propodus with forked setae; dactylus with a robust apical seta. Maxilliped 3 (Fig. 10 B), serrated inner margin with plumose setae on distal end, without outer process; merus with two outer teeth; carpus with serrated outer margin; carpus as long as propodus, two times longer than dactylus. Exopod with five articles. Pereopod 3 (Fig. 10 E), basis longer than rest of articles together, carpus longer than merus; tiny dactylus with an apical short seta. Exopod with five articles. Pereopod 4 (Fig. 10 F), basis half of pereopod, carpus longer than in previous pair. Pereopod 5 (Fig. 10 G), basis shorter and carpus much longer (as long as basis) than in third and fourth pairs. Remarks Zimmer described V. minor based on females and males from Cuba, Martinique and Florida. He noted that the new species is closed to V. cristata, but differing in the following characters: smaller (3 mm male versus 6 mm and 4 mm female versus 5 mm according to Sars); uropodal peduncle more compact and shorter than rami; shorter flagellum of male antenna. Shorter setae on antennula. Zimmer mentioned that "there is no doubt that the specimens from St. Jan, Danish West Indies, Calman noted "not without some hesitation" belonging to V. cristata, are conspecific with the new species V. minor". Calman (1 907) described only some males collected in 1896 from St. Jan (former Danish West Indies). He noted that the only differences are smaller size, shorter and thicker uropodal peduncle. No other structure differences was detected by Calman. Fage (195 1) adopted Calman's point of view and synonymized V. minor with V. cristata Bate, Belize females show the following characters which are similar or different. Body (Fig. 9 A) with five evident pereonites, first one is the smallest; last pleonite with serrated posterior margin, length: approx. 4 mm like in Zirnrner. Carapace (Fig. 9 A, B) with two parallel rows of dorsal spines, two pair of spines on posterior end and about seven mainly on the ocular lobe, a pair of small spines on top of ocular lobe, these spines are interspersed in my specimen, separated by a median crest, in Zirnrner there isn't any dorsal crest and the spines are not interspersed even in lateral view they look like, but interspersed spines exist in V. cristata; less pigmented

24 164 IORGU PETRESCU ocular lobe with three pairs of lateral lenses and five median ones (two apical, two basal and one central); half of antero-ventral margin is serrated. Antenna 1 (Fig. 9 C), with basal article of main flagellum two times longer than second one (equal in Zimmer). Pereopod 1 (Fig. 10 B), with shorter dactylus and smaller exopod than in male. Pereopod 2 (Fig. 10 C) almost similar with that of male, but with smaller exopod. Uropod (Fig. 10 H), peduncle a little shorter than last pleonite (0.8) (equal in Zimmer), same ratio between peduncle and exopod, inner margin with more stout setae like in V. cristata (same number); exopod with long subterminal and terminal setae, long simple setae on inner margin; endopod 1.25 times longer than exopod that reaches half of distal article of endopod, distal article of endopod with longer robust setae than in Zimmer. The main differences, according also to Belize specimens, seems to be the smaller size, pereopods 1 and 2 with shorter dactylus (not previously mentioned) and shorter uropodal peduncle; the rest of characters being similar. I consider that there aren't major differences to clearly separated those two species, so, Vaunthompsonia minor Zirnmer, 1944 must be referred as V. cf. cristata Bate, Anteriorly known distribution from the western Atlantic: Florida, Cuba, Martinique and U.S. Virgin Islands. Family Nannastacidae Campylaspis heardi Muradian-Ciamician, 1980 Material. 1 9, sta. 6, no. MNINGA CUM 427; 1 immat. d', sta. 10, no. MNINGA CUM 428; 2 09,l immat. 8, sta. 11; 1 juv, sta. 36, no. MNINGA CUM 429; 3 99,2 manca, sta. 37; 1 0, 1 juv, sta. 46, no. MNINGA CUM 430. Remarks Previously known from Gulf of Mexico and Jamaica. Campylaspis caribbeana n.sp. (Fig. 11) Material. Holotype, manca, no. USNM ; paratype, 1 manca, sta. 36, no. USNM Type locality. Belize, Man of War Cay, sta. 23, 1 m, sand with Thalassia testudinum, collected on Etymology. The species bears the name of the collecting place - Caribbean Sea. Description Body (Fig. 1 1 A), with well-calcified integument. Length: 1.4 mm. Carapace (Fig. 11 A), with a lateral median sulcus, from the basis of ocular lobe to the posterior quarter of carapace, never reaching the posterior end; ocular lobe with three lenses; notch, absent. Antenna I (Fig. 11 B), proximal article of peduncle, the longest, main, 2- articled flagellum as long as distal article of peduncle; minute accessory flagellum. Maxilliped 2 (Fig. 11 C), basis with an inner plumose seta; carpus with two inner curved simple setae and a spine; large propodus with an outer robust seta and an inner spine; dactylus with three apical setae. Maxilliped 3 (Fig. 11 D), massive merus with an inner serrated margin, a spine on distal outer comer, without setae; carpus with numerous spine-setae on inner margin

25 CUMACEA (CRUSTACEA) FROM BELIZE 165 Fig. I I - Ca~npylaspis caribbeana n.sp. Manca: A, body, lateral view; B, antenna 1; C, ~naxilliped 2; D, maxilliped 3; E, pereopod 1; F, pereopod 2; G, pereopod 3; H, pereopod 4; 1, uropod. Scales (in mm): A,B, 0.3; C,D, 0.2; E-I, 0.2.

26 166 lorgu PETRESCU and an outer plumose seta; propodus with two spines on inner margin, a plumose seta on inner and outer margin each; dactylus with terminal simple short setae. Pereopod I (Fig. 11 E), basis shorter than half of pereopod, long pappose seta on inner distal corner; merus as long as carpus, shorter than propodus and longer than dactylus; dactylus with short terminal setae. Pereopod 2 (Fig. 11 F), carpus 1.5 times longer than merus, with two simple distal setae; dactylus 2.5 times longer than propodus, with a rounded tip, with 4 fine apical setae. Pereopod 4 (Fig. 11 H), with longer basis and carpus than in the third pair (Fig. 11 G), carpus and propodus with a simple seta, dactylus with long simple terminal seta. Uropod (Fig. 11 I), peduncle with an inner serrated margin, 1.6 times longer than pleotelson, 1.4 times longer than endopod; exopod subequal with endopod, with two subterminal short stout setae and an apical microserrated robust long seta; endopod with three microserrated inner stout setae and an apical microserrated much longer one. Remarks The new species is mostly related to Campylaspis redacta Jones (1974) from the deep waters of the eastern coast of USA. The new species has a smaller lateral sulcus and the dactylus of pereopod 2 is rounded not acute. Key for the species of Campylaspis from Belize 1 a - Carapace with ridges, without sulcus Campylaspis heardi Muradian-Ciamician, b - Carapace with sulcus, without ridges Campylaspis caribbeana n.sp. Cumella antipai Petrescu, Iliffe & Sarbu, 1994 Material. 1 9, sta. 1, no. MNINGA CUM 431; 2 99, 1 juv, sta. 11, no. MNINGA CUM 432; 19, sta. 12; 2 99, sta. 14; 2 99, sta. 18; 3 99,l irmnat. 6, sta. 20; 2 immat. dd, sta. 33, no. MNINGA CUM 433; 1 9, sta. 36, no. MNINGA CUM 434; 19, sta. 37, no. MNINGA CUM 435; 1 immat. d, sta. 42, no. MNINGA CUM 436. Remarks Previously recorded only from Jamaica. Cumella biserrata n.sp. (Figs 12-14) Material. Holotype, female, no. USNM ; paratypes: 13 99, 1 d, 11 immat. do?, 2 juv, 3 rnanca, sta. 1, no. USNM ; 7 99, 1 immat. d, sta. 2, no. MNINGA CUM 377; 6 99,5 dd, 2 immat. dd, sta. 4, no. USNM ; 1 9,2 dd, sta. 5, no. MNINGA CUM 378; 48 99,37 d'd, 18 1 rnanca, sta. 6, no. MNINGA CUM 379; 9 dd, sta. 6, no. USNM ; 2 dd, sta.7, no. MNINGA CUM 380; 3 99, 1 d, 1 immat. d, sta. 8, no. USNM ; 7 99,2 immat. dd, sta. 10, no. MNINGA CUM 381; 1 9, 1 immat. d, sta. 11, no. MNINGA CUM 382; 2 99, sta. 13, no. MNINGA CUM 383; 25 99, 7 dd, 4 immat. dd, 3 juv, sta. 14, no. USNM ; 1 9, sta. 15, no. MNINGA CUM

27 CUMACEA (CRUSTACEA) FROM BELIZE 167 Fig Cutr~ella biserwln n.sp. Female: A, body, lateral view; B, carapace, frontal part, lateral view; C, carapace, frontal part, dorsal view; D, antenna 1 ; E, antenna 2; F, labium: G, mandible; H, maxilla I ; I, maxilla 2. Scales (in mm): A, 0.5; B, 0.3; C, 0.2; D,E, 0.1; F-I, 0.1.

28 168 IORGU PETRESCU Fig C~mella biserrata n.sp. Female: A, maxilliped 1; B, maxilliped 2; C, maxilliped 3; D, pereopod 1 ; E, pereopod 2; F, pereopod 3; G, pereopod 4; H, pereopod 5; I, uropod. Scales (in mm): A,O.l; B,O.l;C-I,0.2.

29 CUMACEA (CRUSTACEA) FROM BELIZE ; 2 99, sta. 17, no. MNINGA CUM 385; 1 d, sta. 20, no. MNINGA CUM 386; 15 99,7 dd, 7 imrnat. d d, 2 juv, 1 manca, sta. 23, no. USNM ; 36 99, 12 d d, 13 immat. dd, sta. 24, no. USNM ; 2 immat. d d, sta. 25, no. MNINGA CUM 387; 2 immat. d d, sta. 33, no. USNM ; 2 99, 1 imrnat. d, sta. 36, no. MNINGA CUM 388; 10 99, 3 d d, 6 immat. d d, sta. 37, no. MNINGA CUM 389; 1 juv, sta. 38, no. MNINGA CUM 390; 1 9,2 dd, sta. 42, no. MNTNGA CUM 391; 3 99,2 immat. do", sta. 43, no. MNINGA CUM 392; 3 99,2 immat. d d, sta. 44, no. MNINGA CUM 393; 10 99, 1 d, 4 immat. d d, 1 juv, sta. 46, no. MNINGA CUM 394. Type locality. Belize, Man of War Cay, sta. 23, 1 m, sand with Thalassia testudinum, collected on Etymology. The species has two parallel dorsal rows of denticles on ocular lobe. Description of female (Figs 12, 13) Body (Fig. 12 A), smooth integument. Length: 1.7 mm. Carapace (Fig. 12 A- C), two dorsal parallel ro.ws of six spines on the ocular lobe, the most anterior ones are stronger, just behind the frontal lens; ocular lobe with three pairs of lateral lenses and a frontal one; short pseudorostral lobes with serrated anterior margin; anterior and ventral margin of carapace are also serrated; marked notch. Antenna I (Fig. 12 D), peduncle with short and bulky articles, median article with a very small tubercle with two sensory setae; main flagellum with three articles, longer than proximal article of peduncle. Antenna 2 (Fig. 12 E), with two stout pappose setae. Labium (Fig. 12 F), inner process with three apical slender setae. Mandible (Fig. 12 G), pars incisiva and lacinia mobilis with three teeth, six spine-setae between lacinia mobilis and truncated pars molaris; two tubercles on inner margin. Maxilla 1 (Fig. 12 H), outer lobe with simple stout setae ; palpus longer than protopodus, with two unequal glabrous filaments. Maxilla 2 (Fig. 12 I), ending articles with apical stout curved setae; simple setae on inner margin and forked ones on anterior margin of basal article of protopodus. Maxilliped I (Fig. 13 A), carpus with flattened bifid inner setae interspersed with simple ones; protopodus with outer serrated margin, with two fork-like setae and a short plumose seta on distal inner comer; enlarged and rounded dactylus with several apical fine setae. Maxilliped 2 (Fig. 13 B), basis with pappose inner long setae; forked setae on inner margin of merus, carpus and propodus, propodus with a short outer plumose seta; dactylus with a terminal microserrated robust seta. Maxilliped 3 (Fig. 13 C), basis half of maxilliped with two plumose setae on outer process, inner margin serrated and with two shorter plumose setae; merus with three spines on outer margin, with a short plumose seta; dactylus with a microserrated claw. Slender exopod. Pereopod I (Fig. 13 D), basis shorter than half of pereopod, with two microserrated inner distal stout setae; ischium longer than merus; carpus and propodus, subequal; propodus 2.5 times longer than dactylus; dactylus with two short slender apical setae. Stronger exopod than in maxilliped 3, also with reduced number of articles.

30 170 IORGU PETRESCU

31 CUMACEA (CRUSTACEA) FROM BELIZE 171 Pereopod 2 (Fig. 13 E), basis shorter than half of pereopod; carpus 1.4 times longer than merus with two unequal stout microserrated setae on outer distal corner; dactylus two times longer than propodus, with slender simple setae. Pereopods 3-5 (Fig. 13 F- H), with slender articles; carpus and propodus subequal, longer than merus; dactylus fused with the terminal seta. Uropod (Fig. 13 I), peduncle with serrated margins, 1.4 times longer than pleotelson, 1.6 times longer than endopod; exopod subequal with endopod with a long robust terminal seta; endopod a little longer than exopod, inner margin, strongly serrated, with two stout setae, long terminal robust seta. Description of male (Fig. 14) Body (Fig. 14 A), with smooth integument. Length: 2.1 mm. Carapace (Fig. 14 A), without dorsal spines, similar ocular lobe; short pseudorostrum with a large pair of lenses near the ocular lobe; small serration on antero-ventral comer. Antenna 2 (Fig. 14 B) with short setae on inner margin of last two distal articles of peduncle. Maxilliped 3 (Fig. 14 C), massive basis longer than half of pereopod. Stronger exopod than in female. Pereopod 1 (Fig. 14 D), basis, half of pereopod, with a crest of flattened hyaline setae on outer margin, two strong microserrated stout setae on inner margin; ischium longer than merus; carpus longer than propodus. Pereopod 2 (Fig. 14 E), basis longer than half of pereopod, with a hyaline crest like in previous pair; short carpus, only 1.1 times longer than merus, with two microserrated stout setae; dactylus 1.6 times longer than propodus, with stouter setae than in female. Pereopods 3-5 (Fig. 14 F-H) with progressively shorter basis and longer capus; carpus longer than propodus; minute dactylus not fused with its terminal seta. Uropod (Fig. 14 I), peduncle with serrated margins, 1.6 times longer than last pleonite and endopod; rami like in female, excepting endopod with four stout setae. Remarks Most numerous of all species collected from Belize (379 specimens). This species is related to other Cumella species with dorsal spines from the Caribbean Sea and adjacent areas. But there is the only known species with a double row of spines only on ocular lobe, the main distinctive character. Another different character is the subequal uropodal rami (those species have shorter exopods). Cumella clavicauda Calman, (Fig. 15) Material , 8 d d, 3 irnmat. d d, sta. 1; 1 manca, sta. 3, no. MNINGA CUM 437; 41??,Id, 14 immat. d d, sta. 4, no. MNINGA CUM 438; 2 99,l d, sta. 5, no. MNINGA CUM 439; 12 99,6 dd, sta. 6, no. MNINGA CUM 440; 28 99, 5 d d, sta. 10; 9 99,4 juv, sta. 11, no. MNINGA CUM 441; 1 9, 1 d, sta. 13, no. MNINGA CUM 442; 76 99, 7 dd, 2 immat. dd, 22 juv, sta. 14, no. MNINGA CUM 443; 1 9, sta. 17, no. MNINGA CUM 444; 1 9, sta. 18, no. MNINGA CUM 445; 2 99,1 d, sta. 19, no. MNINGA CUM 446; 6 99, sta. 20, no. MNINGA CUM 447; 4 99, sta. 30, no. MNINGA CUM 448; 4 99,2 dd, 1 juv, sta. 33; 4 99,2 dd, sta. 37; 1 9, sta. 38, no. MNINGA CUM 449; 6 99, 3 immat.

32 172 IORGU PETRESCU Fig Cumella clavicauda Calman, Female (from Carrie Bow Cay - A, B; from Manatee Cay - C-E): A carapace, lateral view; B, tip of pereopod 3; C, carapace, lateral view; D, tip of pereopod 2; E, tip of pereopod 3. Scales (in mm): A,C, 0.3; B,E, 0.1; D, 0.2.

33 CUMACEA (CRUSTACEA) FROM BELIZE 173 dd, 7 d d, 1 juv, sta 40; 1 9, sta. 42, no. MNINGA CUM 450; 1 9, sta. 44, no. MNINGA CUM 451; 7 99,3 dd, sta. 45, no. MNINGA CUM 452. Remarks Some specimens have a typical shape of carapace with almost glabrous pseudorostrum (Fig. 15 A) and simple terminal seta on pereopods 3-5 (Fig. 15 B), like in Calman (191 1) and Bgcescu and Muradian (1977 b), but other specimens (from Manatee Cay and Cat Cay, sts 18,19, 42) have a little different morphology, with numerous setae around the upturned short pseudorostrum (Fig. 15 C), with similar pereopods (Fig. 15 D), but with a pectinated robust terminal seta on. pereopods 3-5 (Fig. 12 E). Previous distribution : Florida, Cuba, Mexico, U.S. Virgin Islands and Curaqao. Cumella garrityi Bgcescu & Muradian, 1977 (Fig. 16) Material. 5 99, 3 dd, 1 irnrnat. d, sta. 11; 4 99, sta. 19; 10 99,4 dd, sta. 20, no. MNINGA CUM 453; 6 99, 1 d, 1 immat. d, sta. 22; 3 99, 1 d, sta. 23, no. MNINGA CUM 454; 1 9, sta. 25, no. MNINGA CUM 455; 1 d, sta. 40, no. MNINGA CUM 456; 3 dd, sta. 44, no. MNINGA CUM 457. A 1 B I Fig Cumella garrityi Bicescu & Muradian, Male: A, carapace ; B, uropod. Scales (in mm): A, 0.3; B, 0.2.

34 174 IORGU PETRESCU Type material. Holotype, male, no. MNINGA 49066, paratype, 1 d, no. MNINGA Remarks Investigation of our Belize specimens and also of type specimens from the collection of "Grigore Antipa" Museum revealed that males have a pair of lenses on pseudorostrum (Fig. 16 A), not mentioned in previous descriptions from Florida and Bahamas, which is characteristic for the subgenus Cumewingia. Recorded from Florida and Bahamas (Abaco Island) (Petrescu, 1996). Cumella gomoiui Bacescu & Muradian, 1977 (Fig. 17) Material. 2 99, 1 d, sta. 1, no. MNINGA CUM 458; 1 0, sta. 5, no. MNINGA CUM 459; 9 99, sta. 6, no. MNINGA CUM 460; 2 dd, sta. 7, no. MNINGA CUM 461; 1 9, sta. 8, no. MNINGA CUM 462; 1 9,4 dd, sta. 10, no. MNINGA CUM 463; 3 99,4 imrnat. d d, sta. 11, no. MNINGA CUM 464; 2 99, 1 d, sta. 13, no. MNINGA CUM 465; 1 d, 1 irnrnat. d, sta. 14, no. MNINGA CUM 466; 1 9, sta. 16, no. MNINGA CUM 467; 4 99,4 dd, 1 juv, sta. 17, no. Fig Cumella gomoiui BBcescu & Muradian, Male: A, carapace ; B, uropod. Scales (in mm): A, 0.3; B, 0.2.

35 CUMACEA (CRUSTACEA) FROM BELIZE 175 MNINGA CUM 468; 9 99,2 dd,3 immat. dd, sta. 18; 3 99,2 dd, sta. 19, no. MNINGA CUM 469; 2 99,3 dd, sta. 20, no. MNINGA CUM 470; 2 juv, sta. 22, no. MNINGA CUM 471; 38 99, 3 dd, 4 juv, sta. 23; 52 99, 6 immat. do?, 10 dd, 20 juv, sta. 24; 5 99,2 dd, 1 immat. d, sta. 25, no. MNINGA CUM 472; 1 d, 2 99, sta. 29, no. MNINGA CUM 473; 19,2 do", sta. 30, no. MNINGA CUM 474; 1 d, sta. 31, no. MNINGA CUM 475; 1 immat. d, sta. 33, no. MNINGA CUM 476; 2 99, sta. 34, no. MNINGA CUM 477; 8 99,2 dd, 3 immat. dd, sta. 36, no. MNINGA CUM 478; 19,l immat. d, sta. 37, no. MNINGA CUM 479; 19,288, sta. 38, no. MNINGA CUM 480; 15 99, 10 dd, sta. 40, no. MNINGA CUM 481; 2 99, 1 8, sta. 42, no. MNINGA CUM 482; 1 9, 3 dd, sta. 43, no. MNINGA CUM 483; 2 99,2 dd, sta. 44; 4 dd, sta. 46, no. MNINGA CUM 484. Type material. Holotype, male, no. MNINGA 49068, paratype, 1 d, no. MNINGA Remarks Most frequent of all species collected from Belize (present in 31 from 44 samples). Males also with lenses on pseudorostrum as in previous species (Fig. 17 A). Cumella gomoiui is also distributed in Cuba and Bahamas (Abaco Island) (Petrescu, 1996). Cumella murariiri n.sp. (Figs 18-20) Material. Holotype, female, no. USNM ; paratypes: 3 99, 1 d, 1 immat. d, sta. 20, no. USNM ; 2 99, sta. 20, no. MNINGA CUM 395; 19, 1 d,2 irnmat. dd, sta. 40, no. MNINGA CUM 396. Type locality. Belize, Carrie Bow Cay, sta. 3, 3 m, small crevices under dead corals, collected on Etymology. The species is dedicated to Dr. Dumitru Murariu, Head of the "Grigore Antipa" National Museum of Natural History from Bucharest, as a sign of gratitude for his generous help that made possible our travel to Belize. Description of female (Figs 18, 19) Body (Fig. 18 A), with well calcified integument. Length: 2.05 mm. Carapace (Fig. 18 A- C), a little shorter than a third of entire body with a few dorsal setae; very short upturned pseudorostrurn, with serrated anterior margin with setae and a prominent spine on upper margin, not meeting in front of ocular lobe; marked notch; short serration on anteroventral margin; a pair of tubercles on basis of ocular lobe; a pair of dorsal elevation on posterior half of carapace. Antenna I (Fig. 18 D), basal article of peduncle, the longest, rest of articles are equal, median article with a hardly noticeable tubercle with a sensory seta; main flagellum with two articles, minute accessory flagellum. Antenna 2 (Fig. 18 E), l-articled, with two short pappose setae. Labium (Fig. 18 F), hairy, with three flattened short apical setae on inner peduncle. Mandible (Fig. 18 G), pars incisiva with three teeth and lacinia mobilis with four teeth, two small tubekcles on inner margin between six spine-setae and truncated pars molaris.

36 176 IORGU PETRESCU Fig Cumella murariui n.sp. Female: A, body, lateral view; B, carapace, frontal part, lateral view; C, carapace, dorsal view; D, antenna 1; E, antenna 2; F, labium: G, mandible; H, maxilla I; I, maxilla 2. Scales (in mm): A, 0.5; B, 0.2; C, 0.5; D,E, 0.2; F-I, 0.1.

37 CUMACEA (CRUSTACEA) FROM BELIZE 177 Fig Cumella murariui n.sp. Female: A, maxilliped 1; B, maxilliped 2; C, maxilliped 3 ; D, pereopod 1; E, pereopod 2; F, pereopod 3; G, pereopod 4; H, pereopod 5; I, uropod. Scales (in mm): A,B,O.l;C,0.2;D-H, 0.3;1,0.2.

38 178 IORGU PETRESCU Maxilla 1 (Fig. 18 H), outer lobe with simple stout apical setae; palpus longer than protopodus, with two unequal glabrous filaments. Maxilla 2 (Fig. 18 I), ending articles with long simple curved apical setae, simple setae on inner margin of protopodus and forked on anterior margin. Maxilliped I (Fig. 19 A), basis with three robust plumose setae with trifid tips on inner margin; merus and carpus with hyaline teeth on outer margin, carpus with long flattened bifid setae interspersed with simple ones on inner margin; three forklike setae and short plumose seta on distal inner comer of propodus; enlarged and rounded dactylus. Maxilliped 2 (Fig. 19 B), two long pappose setae on inner margin of basis; bulky merus with a pappose seta; carpus shorter than propodus, with two forked setae on inner margin; propodus with a short plumose seta on outer distal comer, four forked setae on inner margin; dactylus with a strong robust inicroserrated apical seta. Maxilliped 3 (Fig. 19 C), basis with serrated inner margin, with four plumose setae on distal inner comer, short outer process with two long pappose setae; merus with two strong spines on inner margin and two slender ones on outer margin; pappose setae on merus and carpus; propodus with two forked setae on inner margin; dactylus with a stout microserrated short terminal seta. Pereopod I (Fig. 19 D), basis a third of entire pereopod, with serrated inner margin, a spine on outer margin; carpus 1.4 times longer than propodus. Pereopod 2 (Fig. 19 E), basis a third of entire pereopod, carpus a little shorter than merus, with three stout distal setae, one longer, dactylus two times longer than propodus, with an apical robust seta. Pereopod 3 (Fig. 19 F), basis longer than rest of pereopod, with plumose setae; carpus a little shorter than merus; dactylus hsed with its short apical seta. Pereopods 4, 5 (Fig. 19 G, H), with progressively shorter basis and longer carpus. Uropod (Fig. 19 I), peduncle shorter than last pleonite (0.7), 1.6 times longer than endopod, with few fine setae on both sides; subequal rami, exopod with a robust apical seta; straight endopod with two short stout setae on inner margin and a robust apical long one. Description of male (Fig. 20) Body (Fig. 20 A), with almost glabrous integument, only very few setae on carapace. Length: 1.7 mm. Carapace (Fig. 20 A-C), pseudorostral lobes never reaching extremity of ocular lobe, not fused in front of it, with numerous fine setae on its anterior margins, a pair of large lateral lenses; ocular lobe with two pairs of lateral lenses, a median pair of larger ones and a frontal, large, lens; an oblique lateral crest from the ventral margin towards the pseudorostrum and a pair of posterior elevations on each side of the median dorsal crest. Antenna I (Fig. 20 D), with short and large articles, proximal article of peduncle, the longest. Pereopod I (Fig. 20 E), basis longer than 113 of entire pereopod, with a crest of hyaline teeth on outer margin; carpus 1.5 times longer than propodus; dactylus with short apical setae. Pereopod 2 (Fig. 20 F), crest of hyaline teeth on outer margin of basis, ischium and merus; carpus as long as merus; dactylus a little longer than in female, with stout microserrate setae.

39 CUMACEA (CRUSTACEA) FROM BELIZE 179 Fig Cumella murariui n.sp. Male: A, body, lateral view; B, carapace dorsal view; C, carapace, frontal part, dorsal view; D, antenna 2; E, pereopod 1; F, pereopod 2; G, pereopod 3; H, pereopod 4; I, pereopod 5; J, uropod. Scales (in mm): A,B, 0.5; C,E-I, 0.2; D,J, 0.2.

40 180 IORGU PETRESCU Pereopods 3-5 (Fig. 20 G-I), with progressively shorter basis and longer carpus (longer than merus); pairs 3 and 4 with enlarged basis; dactylus like in female. Uropod (Fig. 20 J), pleotelson is longer than entire uropod (shorter in female), shorter peduncle than female (0.6 of the pleotelson), two times longer than endopod, with serrated inner margin with only one seta; exopod a little shorter than endopod; endopod with four stout short setae on inner margin. Remarks Cumella murariui n.sp. is closely related to Cumella garrityi, C. gomoiui and C. clavicauda, especially with the last one; these are the only known species from this area with robust carapace, very short, hardly visible pseudorostrum and short uropods (Cumella clavicauda has uropodal peduncle shorter than last pleonite). Females of C. murariui n.sp, has a pair of strong spines on upper margin of pseudorostral lobes in front of ocular lobe; uropodal endopod is straight, not curved like in C. clavicauda. Belongs also to the subgenus Cumewingia Biicescu. Cumella cf. ocellata Biicescu, 1992 (Figs ) Material. 2 99,3 dd, sta. 6, no. MNINGA CUM 485; 2 99, 1 d, sta. 10, no. MNINGA CUM 486; 1 imrnat. d, sta. 11, no. MNINGA CUM 487; 2 dd, sta. 19, no. MNINGA CUM 488; 4 99,2 immat. dd, 1 d, 1 manca, 2 juv, sta. 22; 2 99, sta. 33; 3 99, 1 imrnat. d, 1 d, sta. 36; 1 9, 2 immat. dd, 1 rnanca, sta. 37, no. MNINGA CUM 489; 19, 1 d', sta. 40, no. MNINGA CUM 490. Remarks Belize specimens show some differences. Females Body (Fig. 21 A), with a less hirsute integument; carapace (Fig. 21 A, B), with a less upturned pseudorostrum with more setae on its anterior margin, a more serrated antero-ventral margin, ocular lobe with a frontal lens; mandible (Fig. 21 F), with more spine-setae and with two small tubercles on inner margin; maxilla 1 (Fig. 21 G), with longer filaments; maxilliped 1 (Fig. 21 I), with a shorter plumose setae on propodus; maxilliped 2 (Fig. 22 A), with two pappose setae on basis; maxilliped 3 (Fig. 22 B), with shorter setae; pereopod 1 (Fig. 22 C), without hyaline teeth on basis; pereopod 2 (Fig. 22 D), like in previous one; pereopods 3-5 (Fig. 22 E-G), shorter than in Bermuda specimens; uropodal peduncle with less setae on inner margin, without microsetae, subequal rami versus exopod shorter than endopod (Fig. 22 H). Males (Fig. 23) Carapace (Fig. 23 A, B), with smooth integument; maxilliped 3 (Fig. 23 C), with a short serration on basis and a tooth on outer margin of merus; pereopod 5 (Fig. 23 H), with longer basis and shorter carpus; uropods (Fig. 23 I) with longer exopod (subequal with endopod). Previously recorded only from Bermuda (Bkescu, 1992 b, Petrescu and Sterrer, 2001).

41 CUMACEA ICRUSTACEA) FROM BELIZE 181 B-D v Fig Cumella cf. ocellata Bicescu, Female: A, body, lateral view; B, carapace, dorsal view; C, antenna 1; D, antenna 2; E, labium; F, mandible; G, maxilla 1; H, maxilla 2; I, maxilliped 1. Scales (in mm): A, 0.5; B-D, 0.2; E-I, 0. I.

42 182 IORGU PETRESCU Fig Cumella cf. ocellata BBcescu, Female: A, maxilliped 2; B, maxilliped 3 ; C, pereopod 1 ; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, uropod. Scales (in mm): A, 0.1 ; B, 0.2; C-G, 0.2; H, 0.3.

43 CUMACEA (CRUSTACEA) FROM BELIZE 183 Fig Cumella cf. ocellata Bicescu, Male: A, body, lateral view; B, carapace dorsal view; C, maxilliped 3; D, pereopod 1; E, pereopod 2; F, pereopod 3; G, pereopod 4; H, pereopod 5; I, uropod. Scales (in mm): A,B, 0.5; C-H, 0.2; I, 0.2.

44 1 84 IORGU PETRESCU (Figs 24-26) Material. Holotype, female, no. USNM ;paratypes: 1 9, 1 immat. d, sta. 1, no. MNINGA CUM 397; 1 9, sta. 2, no. USNM ; 7 99,l immat. d, sta. 4, no. USNM ; 2 99,l immat. d, sta. 5, no. MNINGA CUM 398; 1 9, sta. 10, no. USNM ; 2 99, sta. 11, USNM ; 1 9, 1 immat. d, sta. 13, MNINGA CUM 399; 7 99, sta. 14, no. MNINGA CUM 400; 1 9, sta. 37, no. USNM Type locality. Belize, Carrie Bow Cay, sta. 13, western coast, 3 m, from empty shells of Strombus gigas, collected on Etymology. Species dedicated to Dr. Klaus Riitzler, Director of the "Caribbean Coral Reef Ecosystem Program" of the National Museum of Natural History, Smithsonian Institution, for his generous help and sustain of this project. Description of ovigerous female (Figs 24,25) Body (Fig. 24 A, B), with granulous integument. Length: 1.6 mm. Carapace (Fig. 24 A, B), three spines and up to 16 tubercles with rounded tips in two dorsal rows (interspersed), from ocular lobe to the swollen of posterior end; ocular lobe with two pairs of lateral lenses and a bigger frontal one; pseudorostral lobes longer than ocular lobe, with serrated anterior margin; marked notch, two strong teeth on antero-ventral comer. Pereon, with dorsal tubercles on each segment ( ). Pleon, median crest up to the last pleonite, a dorsal tubercle on first two pleonites. Antenna I (Fig. 24 C), median article of peduncle with a small tubercle with two short sensory setae. Antenna 2 (Fig. 24 D), with one pappose seta. Mandible (Fig. 24 E), pars incisiva and lacinia mobilis with three teeth each, seven spine-like setae on inner margin, truncated pars molaris. Maxilla I (Fig. 24 F), palpus a little longer than protopodus, with two unequal glabrous filaments. Maxilla 2 (Fig. 24 G), ending articles with simple apical long setae. Maxilliped I (Fig. 24 H), five flattened bifid setae on inner margin of carpus, without any other setae, a small stout seta on distal outer comer of carpus; a short pappose seta on distal outer comer of propodus; enlarged, rounded, dactylus with apical setae.. Maxilliped 2 (Fig. 25 A), basis with two strong pappose setae on inner distal comer; enlarged carpus and propodus, with forked setae on inner margin; dactylus with a terminal microserrated robust seta. Maxilliped 3 (Fig. 25 B), four plumose setae on inner distal comer of basis, two long plumose setae on outer process; a plumose seta on outer distal comer of carpus and propodus; enlarged propodus with two inner forked setae; dactylus with two long terminal microserrated robust setae. Pereopod I (Fig. 25 C), basis a 113 of entire pereopod, with a crest of hyaline teeth on outer margin; ischium as long as merus; carpus subequal with propodus; propodus longer than dactylus; dactylus with a long terminal simple robust seta.

45 CUMACEA (CRUSTACEA) FROM BELIZE 185 Fig Cumella ruetzleri n.sp. Female: A, body, lateral view; B, body, dorsal view; C, antenna 1; D, antenna 2; E, mandible; F, maxilla 1; G, maxilla 2; H, maxilliped 1. Scales (in mm): A,B, 0.5; C,D,0.2;E,O.l;F-H,O.l.

46 186 IORGU PETRESCU Fig Cumella ruetzleri n.sp. Female: A, maxilliped 2; B, maxilliped 3 ; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, uropod. Scales (in mm): A, 0.1; B,H, 0.2; C-G, 0.2.

47 CUMACEA (CRUSTACEA) FROM BELIZE 187 Pereopod 2 (Fig. 25 D), basis longer than 113 of entire pereopod, with a crest of hyaline teeth on outer margin; carpus a little longer than merus, with a fine seta on distal outer comer; dactylus 1.3 times longer than propodus, with simple setae. Pereopods 3-5 (Fig. 25 E-G), with progressively shorter basis and longer carpus; enlarged propodus, longer than carpus; dactylus fused with its terminal seta. Uropod (Fig. 25 H), peduncle 1.08 times longer than last pleonite, 1.3 times longer than its endopod, with setulated inner margin; exopod shorter than endopod (0.6), with a long terminal robust seta; endopod, with two stout setae on setulated inner margin, also with a long robust terminal seta. Description of immature male (Fig. 26) Body (Fig. 26 A), like in female. Length: 1.38 mm. Pereon with a dorsal tubercle on fourth segment. Carapace (Fig. 26 A), with five dorsal spines. Rest of characters are like in female. Uropod (Fig. 26 B), peduncle shorter than the pleotelson (0.8), with glabrous margins, shorter than endopod (0.8); exopod shorter than endopod (0.7), with a long robust terminal seta; endopod with two stout setae on inner margin and a similar terminal seta. Remarks This species is related to Cumella serrata Calman and other species with spines from Jamaica, C. jamaicensis, C. longicaudata, C, medeeae Petrescu, Iliffe et Sarbu (1994) which has also numerous dorsal spines on carapace, pereon and pleon and to Cumella californica Watling & McCann (1997) (especially the immature males) from the Californian coast. It differs by having tubercles instead of spines, more numerous on carapace, up to 19, in two rows (most important distinctive character), uropodal endopod with two stout setae on inner margin, not four as in females of C. ocellata and C. somersi (last one is another species with dorsal spines). Probably it belongs also to the subgenus Cumewingia, having almost all the characters of this taxon present in female (male has those very characteristic lenses on pseudorostrum, absent in female): maxilliped 1 devoid of simple setae on inner margin of carpus, propodus with a short plumose strong seta, large and rounded dactylus (like in Nannastacus, Scherocumella and Schizotrema); maxilliped 2 with two pappose setae on basis; pereopods 3-5 with enlarged propodus also like in Nannastacus. Those two tubercles from the inner margin of mandible found in other members of this subgenus are absent in Cumella ruetzleri n.sp. Cumella serrata Calman, Material. 1 immat, d, sta. 3, no. MNINGA CUM 499; 3 99, 1 d, sta. 4, no. MNINGA CUM 500; 5 99, sta. 1; 2 99, sta. 6, no. MNINGA CUM 501; 1 irnmat. d, sta. 8, no. MNINGA CUM 502; 8 99, 1 d, sta. 10; 6 99,2 dd, 1 irnmat. d, sta. 11; 5 99, 1 d,3 immat. dd, 3 juv, sta. 14; 1 9, 1 immat. d, sta. 22, no. MNINGA CUM 503; 6 99, 3 88, sta. 23; 8 99, 9 dd, sta. 24, no. MNINGA CUM 505; 2 dd, sta. 25, no. MNINGA CUM 504; 19, sta. 27, no. MNINGA CUM 506; 4 99, 1 immat. d, sta. 36, no. MNINGA CUM 507; 2 99, 1 d, sta. 37, no. MNINGA CUM 508; 4 99, 2 dd, sta. 40, no. MNINGA CUM 509; 1 9, sta. 42ho. MNINGA CUM 510; 1 9, sta. 45, no. MNINGA CUM 511; 1 9, 1 d, sta. 46, no. MNINGA CUM 512.

48 188 IORGU PETRESCU Fig Cumella ruetzleri n.sp. Immature male: A, carapace, lateral view : B, uropod. Scales (in mm): A, 0.3; B, 0.2.

49 CUMACEA (CRUSTACEA) FROM BELIZE 189 Remarks Known also from U.S. Virgin Islands and Bermuda (Petrescu & Sterrer, 2001). Cumella somersi Petrescu & Sterrer, 2001 Material. 2 99, 1 immat. d, sta. 1, no. MNINGA CUM 513; 4 99, sta. 4, no. MNINGACUM514; 299,1d,1 immat.d,sta. 6,110. MNINGACUM515;299, sta. 8, no. MNINGA CUM 516; 1 9, sta. 9, no. MNJNGA CUM 517; 8 99,3 dd, sta. 10, no. MNINGA CUM 518; 6 99,3 dd, 6 immat. d d, 1 manca, 5 juv, sta. 11, no. MNINGA CUM 519; 2 99, sta. 13, no. MNINGA CUM 520; 1 9, 1 d, sta. 14, no. MNINGA CUM 521; 1 immat. d, sta. 19, no. MNINGA CUM 522; 23 9?, 9 d'd, 5 irnmat. dd, sta. 23; 15 99, 7 d d, sta. 24; 2 99, sta. 25, no. MNINGA CUM 523; 2 99, 2 immat. d d, sta. 30; 3 99, 3 d'd, 1 juv, sta. 36; 4 99, sta. 37;l 9,l d, sta. 38; 1 9,3 dd, sta. 42, no. MNINGA CUM 524. Remarks Species found only in terra typica, Bermuda. Cumella vicina Zimmer, 1944 (Figs 27-29) Material. 1 9, sta. 8; 2 99, sta. 19; 1 9, sta. 33; 1 d, sta. 41; 5 99, 1 d, sta. 42, no. MNINGA CUM 525. Description of female (Figs 27,28) Only the males of this species were previously known (Zimmer, 1944, Petrescu, Iliffe & Sarbu, 1994). I add the description of females. Body (Fig. 27 A), with highly granulous integument. Length: approx. 2.1 mm. Carapace (Fig. 27 A, B), four dorsal strong tubercles, one on the posterior elevation, one median and two on the ocular lobe (not interspersed), a median dorsal crest; two separated groups of three lenses each (no median and frontal ones); pseudorostral lobes with serrated margins, meeting in front of the ocular lobe, exceeding it; marked notch, anteroventral comer acute, prominent; more elevated in posterior, branchial part. Pereon with a media dorsal tubercle on second and third segments. Pleon with elevated posterior half and lateral strong ridge. Last pleonite with lateral posterior elevations. Antenna 1 (Fig. 27 C), with slender articles, median article of basis, the shortest with a small tubercle with sensory setae. Antenna 2 (Fig. 27 D), with two pappose setae. Mandible (Fig. 27 E), pars incisiva with three teeth, lacinia mobilis with four, five spine-like setae and two small tubercles on inner margin, truncated pars molaris. Maxilla 1 (Fig. 27 F), outer lobe with simple stout setae; palpus longer than protopodus, with two unequal glabrous filaments. Maxilla 2 (Fig. 27 G), ending articles with long curved simple setae. - Maxilliped 1 (Fig. 27 H), long plumose hand-like setae on basis; flattened bifid setae on inner margin of carpus interspersed with simple setae; a short plumose seta on propodus; strong, enlarged and rounded dactylus with fine apical setae. --

50 190 IORGU PETRESCU Fig Cumella vicina Zimmer, Female: A, body, lateral view; B, carapace, dorsal view; C, antenna 1; D, antenna 2; E, mandible; F, maxilla 1; G, maxilla 2; H, maxilliped 1. Scales (in mm): A,B,O.S;C,0.2;D,0.2; E-H,O.l.

51 CUMACEA (CRUSTACEA) FROM BELIZE 191 Fig Cumella vicina Zimmer, Female: A, maxilliped 2; B, maxilliped 3 ; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, uropod. Scales (in mm): A, 0.1; B,H, 0.2; C-G, 0.2.

52 192 IORGU PETRESCU Maxilliped 2 (Fig. 28 A), enlarged articles, basis with two inner long pappose setae; bulky merus with a pappose inner seta; carpus longer than propodus, forked setae on inner margin of carpus and propodus; propodus with a short plumose seta on distal outer comer; dactylus with a strong microserrated robust terminal curved seta. Maxilliped 3 (Fig. 28 B), a strong plumose seta on inner distal comer, short outer process with two unequal plumose setae; long merus with two teeth on outer distal corner; enlarged propodus as long as merus; dactylus with two strong pectinated long robust apical setae. Small, slender, exopod. Pereopod I (Fig. 28 C), basis shorter than half of pereopod, with an outer hyaline crest of teeth; carpus 1.3 times longer than propodus; propodus longer than dactylus which ends with a long robust seta. Small, slender, exopod. Pereopod 2 (Fig. 28 D), massive basis shorter than half of pereopod, with an outer hyaline crest of teeth; carpus a little longer than merus, with two stout distal outer stout setae (exceeding propodus); short dactylus, 1.5 times longer than propodus, with stout simple setae on both sides and a terminal longer one. Small, slender, exopod. Pereopods 3-5 (Fig. 28 E-G), progressively longer, the fourth pair is the longest, with progressively longer basis and carpus (carpus as long as merus in third and fourth pairs, longer in the last one); enlarged propodus, longer than carpus in pairs third and fourth, shorter in the fifth; dactylus distinctly articulated with its long robust terminal seta. Uropod (Fig. 28 H), robust peduncle (1.6 times longer than large), shorter than the sixth pleonite (0.53 of its length), 1.5 times longer than exopod and shorter than endopod fused with its terminal seta, fine setae on inner margin; exopod never reach the articulation of the distal stout seta from the inner margin of endopod, much slender than endopod, with a terminal robust seta; endopod a little curved, fused with its robust terminal seta, much stronger than exopod's one, with fine setae and two stout setae on inner margin. Remarks Body (Fig. 29 A), carapace (Fig. 29 A, B), maxilliped 3 and pereopods 1-4 like in Zimmer and Petrescu and all. (1994). Antenna 1 (Fig. 29 C) has a very small tubercle on the median article of peduncle, not previously mentioned. Shorter pereopod 5 (Fig. 29 I). Uropods (Fig. 29 J) are shorter and last pleonite longer than in previous descriptions (peduncle/pleotelson = 0.5 versus 0.8), peduncle without stout setae; longer exopod (exopodlendopod = 0.8 versus 0.6); endopod fused with its robust apical seta (like in Zimrner, not like in Petrescu and all.) Large known distribution in the Gulf of Mexico, Florida, Cuba and Jamaica. Key for the species of Cumella from Belize Females la - Body with spines or tubercles... 2 lb - Body with smooth integument a - Body with tubercles andlor spines b - Carapace only with small dorsal tubercles... Cumella vicina Zimrner, a - Body with numerous tubercles and spines... Cumella ruetzleri n.sp. 3b -Body only with spines... 4

53 CUMACEA (CRUSTACEA) FROM BELIZE 193 Fig Cumella vicina Zimmer, Male: A, body, lateral view; B, carapace dorsal view; C, antenna 1; D, maxilliped 3; E, pereopod 1; F, pereopod 2; G, pereopod 3; H, pereopod 4; 1, pereopod 5; J, uropod. Scales (in mm): A,B, 0.5; C,J, 0.2; D-I, 0.2.

54 194 IORGU PETRESCU 4a - Carapace with six spines, spines also on pereon... Cumella serrata Calrnan, b - Carapace with less than six spines, absent on pereon a - Carapace with two rows of dorsal spines... Cumella biserrata n.sp. 5b - Carapace with one row of dorsal spines a - Carapace with 1-2 spines, uropod endopod with two stout lateral setae... Cumella somersi Petrescu & Sterrer, b - Carapace with a median spine on a small elevation, uropodal endopod with lateral stout setae... Cumella antipai Petrescu, Iliffe & Sarbu, a - Uropodal peduncle as long or longer than 6th pleonite b - Uropodal peduncle shorter than 6th pleonite a - Uropodal peduncle longer than 6th pleonite, smooth integument... Cumella garrityi BBcescu & Muradian, b - Uropodal peduncle as long as 6th pleonite, carapace with setae... Cumella cf. ocellata BBcescu, a - Uropod with straight endopod b - Uropod with curved endopod... Cumella clavicauda Calman, a - Long pseudorostrum, scaled pleon and uropods, evident dorsal crest on 5th pleonite, uropodal endopod with one stout inner seta... Cumella gomoiui Biicescu & Muradian, b - Very short pseudorostrum, smooth pleon and uropods, uropodal endopod with two inner stout setae... Cumella murariui n.sp. Males 1 a - Long uropods b - Short uropods a - Ocular lobe with nine lenses... Cumella cf. ocellata BBcescu, b -Ocular lobe with less than nine lenses a - Uropodal peduncle without setae... Cumella biserrata n.sp. 3b - Uropodal peduncle with setae a - Uropodal peduncle 1.4 times longer than 6th pleonite... Cumella serrata Calman, b - Uropodal peduncle less than 1.4 times longer than 6th pleonite a - Uropodal peduncle 1.3 times longer than 61h pleonjte... C. somersi Petrescu & Sterrer, b - Uropodal peduncle 1.2 times longer than 6th pleonite... C. garrityi Biicescu & Muradian, a - Straight uropods b - Curved uropods... Cumella clavicauda Calman, a - Scaled uropods... Cumella gomoiui Biicescu & Muradian, b - Smooth uropods a - Uropodal peduncle with setae b - Very short pseudorostrum, uropodal peduncle without setae... Cumella murariui n.sp. 9a - Carapace with setae and with a dorsal median elevation... Cumella antipai Petrescu, Iliffe & Sarbu, 1994

55 CUMACEA (CRUSTACEA) FROM BELIZE 195 9b - Carapace without setae and dorsal elevation Cumella vicina Zirnmer, 1944 Male of Cumella ruetzleri n.sp. is unknown. Schizotrema watlingi n. sp. (Fig. 30) Material. Holotype, manca, no. USNM Type locality. Belize, Twin Cays, sta. 11, 0.5 m, sand with Thalassia testudinum, collected on Etymology. The species is dedicated in honour of Dr. Les Watling, Professor of oceanology at the University of Maine, Darling Marine Centre, high authority in study of systematic and philogeny of Peracarida, with fundamental contributions in Cumacea. Description Body (Fig. 30 A), with glabrous integument. Length: 1.1 mm. Carapace (Fig. 30 A, B), large ocular lobe, with two groups of four lenses each separated by a short depression; pseudorostral lobes with serrated anterior margin, longer than ocular lobe, completely separated in front of ocular lobe; ventral margin, serrated. Antenna I (Fig. 30 C), with short articles, median article of peduncle with an evident tubercle with two sensory setae. Pereopod I (Fig. 30 D), basis shorter than 113 of entire pereopod; carpus as long as propodus; slender dactylus with a long stout terminal seta. One-articled exopod. Pereopod 2 (Fig. 30 E), basis longer than 113 of entire pereopod; carpus as long as merus, with a long stout seta on outer distal comer; short dactylus, 1.3 times longer than propodus, with simple robust terminal setae. Reduced exopod as in first pair. Pereopod 3 (Fig. 30 F), basis shorter than half of pereopod; merus longer than ischium; carpus as long as propodus; dactylus with a long robust terminal seta. Pereopod 4 (Fig. 30 G), longer than the third pair, with shorter basis; propodus longer than carpus. Uropod (Fig. 30 H), short peduncle, half of the 6th pleonite length, as long as exopod and shorter than endopod (0.7), with serrated inner margin; exopod shorter than endopod, with a long robust terminal seta; endopod with two stout setae on inner margin and a long terminal robust seta (longer and stronger than in exopod). Remarks The new species resembles the only two known species of genus Schizotrema known up to this moment from the western Atlantic: Schizotrema agglutinanta Bscescu (1971) from Florida, Cuba and Bermuda and S. wittmanni Petrescu & Sterrer (2001) from Bermuda. It differs by: more closer lenses, as in Cumella (like in Cumella vicina), but separated by a depression and not by a straight margin and completely separated pseudorostral lobes versus united ones on their entire length; ventral margin serrated; shorter uropods, shorter than last pleonite and with smaller serration as in S. wittmanni.

56 196 IORGU PETRESCU Fig Schizotrema watlingi n. sp. Manca: A, body, lateral view; B, carapace, dorsal view; C, antenna 1; D, pereopod 1; E, pereopod 2; F, pereopod 3; G, pereopod 4; H, uropod. Scales (in mm): A,B, 0.2; C-H, 0.2.

57 - CUMACEA (CRUSTACEA) FROM BELIZE 197 Family Diastylidae Leptostylis cf, ampullacea (Liljeborg, 1855) Material. 1 juvenile, sta. 36. Remarks Belize specimen is almost similar to specimens from eastern Atlantic and from coast of Maine. It differs by carapace with interrupted lateral parallel crests instead of setae and shorter uropod, subequal with telson instead of two times longer. Previously recorded from NE and NW Atlantic cold waters, from 11-3,000 m deep (Bgcescu, 1992 a). Oxyurostylis antipai Petrescu, Iliffe & Sarbu, 1993 Material. 1 female, sta. 10. Remarks Recorded only from Jamaica. Oxyurostylis bacescui n. sp. (Fig. 31) Material. Holotype, immature male, no. USNM Type locality. Belize, Cat Cay, sta. 41, sandy bottom, collected on Etymology. The species is dedicated to the memory of Acad. Mihai C. Bacescu ( ), famous Romanian specialist in Peracarida and fine scholar, as a sign of pious gratitude for all his experience and references offered to me in more than 10 years of collaboration at the "Grigore Antipa" Museum. Description Body (Fig. 31 A), with glabrous integument. Length: 3.3 mm. Carapace (Fig. 3 1 A, B), two parallel rows of denticles from posterior end up to the basis of ocular lobe, two oblique lateral crest, one longer, from the dorsal row up to the antero-ventral corner and shorter one, towards the ocular lobe, that meets a transversal crest who continues as a row of denticles on the pseudorostrum; two parallel transversal rows on ocular lobe; ocular lobe with two pairs of lateral lenses and a frontal one, a pair of median denticles; long pseudorostrum; ventral margin with a strong serration. Telson (Fig. 31 J), 2.4 times longer than last pleonite, a little shorter than uropodal peduncle, preanal part is a little shorter than postanal one which is hsed with the terminal stout unique seta, two fine setae on each side closer to the tip. Antenna I (Fig. 31 C), last two articles of peduncle are equal; main flagellum with four segments, accessory flagellum with three segments, not reaching the half of the second article of main flagellum. Maxilliped 3 (Fig. 31 D), basis longer than half of maxilliped, plumose setae on inner margin, strong spine on inner distal comer, large outer process with two apical pappose setae and two plumose setae on its inner margin; merus without an outer process; carpus as long as propodus; dactylus with numerous terminal setae.

58 198 IORGU PETRESCU Fig Oxyurostylis bacescui n. sp. Immature male: A, body, lateral view; B, carapace, dorsal view; C, antenna I ; D, maxilliped 3; E, pereopod 1; F, pereopod 2; G, pereopod 3; H, pereopod 4; I, pereopod 5; J, uropod. Scales (in mm): A, 1; B, 0.5; C,G-J, 0.3; D-F, 0.5.

59 CUMACEA (CRUSTACEA) FROM BELIZE 199 Pereopod 1 (Fig. 31 E), basis longer than 113 of entire pereopod, with numerous long plumose setae on inner margin, serrated outer margin with fewer plumose setae, two median denticles near the articulation with ischium; ischium with an inner spine; propodus 1.3 times longer than carpus and 1.7 times longer than dactylus. Pereopod 2 (Fig. 31 F), basis longer than 113 of entire pereopod, with long plumose setae on inner margin; ischium with an inner spine; merus with plumose setae on both sides; carpus two times longer than merus; dactylus 1.6 times longer than propodus, with simple setae. Pereopods 3-5 (Fig. 31 G-I), with progressively shorter basis and longer carpus, with long simple setae; dactylus with a terminal robust seta. Uropod (Fig. 31 J), more than 2.5 times longer than last pleonite, a little longer than telson, with six long stout setae on inner margin, 1.6 times longer than its rami; subequal rami, two-articulated exopod a little longer than three-articulated endopod, stout long subterminal seta and a terminal one much longer; endopod with few stout setae on inner margin (2-1-I), proximal segment, the longest of all, terminal seta shorter than in exopod. Remarks Oxyurostylis bacescui n. sp. is related both to west Atlantic species, 0. antipai, 0. lecroyae Roccatagliata & Heard (1995), 0. salinoi Brum (1966), 0. smithi Calman (1912), with lateral crests on carapace, and to east Pacific ones (from Californian and Mexican coasts), 0. paclfica and 0. tertia, both of them described by Zirnrner (1936, 1943), with transversal rows of denticles on ocular lobe. It mainly differs by the aspect of carapace with peculiar combination between those two transversal rows from ocular lobe, the dorsal longitudinal rows and the lateral crests. Key to the species of Oxyurostylis from Belize 1 a - Carapace with transversal rows of denticles on ocular lobe bacescui n. sp. 1 b - Carapace without transversal rows of denticles on ocular lobe antipai Petrescu, Iliffe & Sarbu, 1993 GENERAL REMARKS ON CUMACEA FAUNA FROM BELIZE Up to this moment 53 species of shallow water Cumacea are known from the western Atlantic. Previously studied shallow water areas from the western Atlantic regarding Cumacea were Bermuda, Gulf of Mexico (Florida and Mexican coasts), Bahamas (only from Andros and Abaco Islands), Greater Antilles (Cuba, Jamaica), Lesser Antilles (St. John, US Virgin Islands, St. Martin, Curaqao and Bonaire). This distribution and the number of known species reflect in fact more the state of knowledge than the real distribution of Cumacea. Large areas still remained unexplored and on others we must come back for more thorough researches. The highest diversity of Cumacea was found in the Gulf of Mexico, Florida and Jamaica (15, 15 and 14 species respectively), but lower than in Belize (25 species). Ten species (eight of them are new to science) are added from present study from Belize. There are some common species with adjacent areas with Bermuda: Cumella ocellata and C. somersi, with Jamaica: Cyclaspis jamaicensis, C. simonae, Cumella antipai and Oxyurostylis antipai (highest similitude of fauna), with Gulf of Mexico:

60 200 IORGU PETRESCU Cyclaspis granulata and Oxyurostylis smithi, with Brazil: Cyclaspis reticulata; with larger areas: Cuba and Bahamas - Cumella gomoiui, Florida, Bahamas, Gulf of Mexico - Cumella garrityi, Florida, Gulf of Mexico, Cuba, Jamaica - Cumella vicina, Bermuda, Gulf of Mexico, Cuba, U.S. Virgin Islands - Cumella serrata, Florida, Gulf of Mexico, St. John (U.S. Virgin Islands), Cuba, Curaqao - Cumella clavicauda, Gulf of Mexico, Bahamas, Cuba, Jamaica - Campylaspis heardi, Florida, U.S. Virgin Islands, Cuba, Martinique - Vaunthompsonia cf. cristata; with NE coast of USA - Leptostylis cf. ampullacea. Number of species corresponds with the usual situation found in shallow waters almost everywhere, with more abundant Nannastacidae, the lowest in Diastylidae. So, I identified in Nannastacidae 14 species, in Bodotriidae, eight species and Diastylidae with only three. Within the Nannastacidae, there are three genera that reflect the general distribution of the family in the western Atlantic, two Campylaspis, Cumella with the highest number of all, 11, (also with the most numerous specimens) and Schizotrema with one species which is new. Genus Nannastacus, widely distributed in the eastern hemisphere, is absent from the western Atlantic. In Belize, genus Cumella is represented only by the subgenus Cumewingia that has more representatives in western Atlantic than in the rest. This subgenus has some transition characters to Schizotrema or Nannastacus, frontal lense from the ocular lobe could be absent, but the lateral ones are not clearly grouped as in Schizotrema, middle article of peduncle of antennule has a very small tubercle which is quite well developed in Schizotrema, large and rounded dactylus of maxilliped 1; but there are some characters proper to this subgenus: male with lenses on pseudorostrum, not separated pseudorostral lobes, female could have dorsal spines on carapace, mandible with two tubercles on inner margin, propodus of maxilliped 1 with a short plumose seta, basis of maxilliped 2 with two pappose setae, propodus with forked setae (not pectinated like in Schizotrema and Nannastacus). A Cumella species with spines on carapace is present also on the waters of the American Pacific coast, Cumella calijornica, closer related to Cumella (Cumewingia) ruetzleri n.sp. Genus Cyclaspis has the most species of the family Bodotriidae, seven (two of them are new to science). Those five species are common with Gulf of Mexico: Cyclaspis granulata; with Jamaica: C. granulata, C. jamaicensis and C. simonae; with St. Martin: C. goesi and Brazil: C. reticulata. A species with lateral ridges on carapace also exists on the Pacific coast of Central America, Cyclaspis concepcionensis Donath from Gulf of California (Donath-Hernandez, 1988b). Vaunthompsonia cristata is widely distributed in the Atlantic, Mediterranean, Indian and west Pacific Oceans. Family Diastylidae has only three species known from Belize, one of them new to science, the other two common with coast of Maine (Leptostylis cf. ampullacea) and with Jamaica (Oxyurostylis antipai). ACKNOWLEDGEMENTS I am deeply indebted to Dr. Klaus Riitzler, Director of the "Caribbean Coral Reef Ecosystems Program", to Dr. Brian Kensley and Dr. Frank Ferrari (National Museum of Natural History, Smithsonian Institution) for warmly sustaining my proposal; to Dr. Mike Carpenter, Operations manager, to Marsha Sitnik (same institution) and Luz Curet (Smithsonian Institution Off~ce of Fellowships and Grants) for helping me in solving the financial formalities; to Dr. Dumitru Murariu,

61 CUMACEA (CRUSTACEA) FROM BELIZE 20 1 Director of the "Grigore Antipa" National Museum of Natural History (Romania) for making possible the travel to Belize; to Dr. Wolfgang Sterrer, Director of Bermuda Natural History Museum, who suggested me this study; to Dr. Richard W. Heard (Gulf Coast Research Laboratory, USA) for precious papers on Caribbean Cumacea; to Dr. Brian Kensley (Smithsonian Institution) who loaned me the type specimen of Cyclaspis dentifrons; to Dr. Jsrgen Olesen (Zoological Museum, Copenhagen) for loaning the holotype of Cyclapis unicornis; to Karin Sindemark (Swedish Museum of Natural History, Stockholm), Dr. Geir E. E. Soli, Dr.Lutz Bachmann and Ase Wilhelmsen (Zoological Museum, Oslo) for checking in their museums' collections the holotype of Stephanomrna goesii Sars; to Dr. Ute Miihlenhardt-Siegel (Zoological Institute and Museum, Hamburg) for English translation from Zimmer; to Dr. Janet Wulff (USA) for identification of sponges in the field and for all kind suggestions; to anonymous reviewers for improving the manuscript and to Mihaela Barcan Achim for checking the English translation; at last but not least, I am more than gratefill to my wife Angela for her devotion in helping me in collecting and sorting the material in Belize. CUMACEA (CRUSTACEA: PERACARIDA) DIN BELIZE REZUMAT Materialul a fost colectat de Dr. Iorgu Petrescu ajutat de sofia sa, Angela Petrescu, in perioada , din 7 statii (46 probe) din jurul insulei Carrie Bow Cay din cadrul barierei de corali din Belize (America Ceantrali). Studiul s-a desfavurat in cadrul "Caribbean Coral Reefs Ecosystems Program" al Muzeului National de Istorie Naturali din Washington (Smithsonian Institution). Prima mentiune a cumaceelor din Belize. Au fost identificate 25 specii, opt specii sunt noi pentru ~tiinfi: Cyclaspis kensleyi, C. sterreri, Campylaspis caribbeana, Cumella biserrata, C. murariui, C. ruetzleri, Schizotremu watlingi vi 0,ryurostylis bacescui. Revizii ale speciilor Cyclaspis goesi (Sars, 1871) (sin. Stephanomma goesii Sars, 187 I), Cyclaspis granulata (Radha Devi & Kurian, 1981) (sin. Pseudocyclaspis granulata Radha Devi & Kurian, 1981), Cyclaspis jamaicensis Petrescu, Iliffe & Sarbu, 1993, Cyclaspis unicornis Calman, 1907 [sinonimizati cu Cyclaspis goesi (Sars)] $i Vaunthompsonia minor Zimmer, 1944 (sinonimizati cu V. cf. cristata Bate, 1858). Desemnat neotipul pentru Cyclaspis goesi (Sars, 187 I). Distribufia geograficg a cumaceelor giisite certifici legiturile faunistice existente cu Bermuda, Bahamas, Florida, Mexic $i Antilele (Cuba, Jamaica, U.S. Virgin Islands, Martinica, Bonaire, Cura~ao), cele mai numeroase elemente comune avlndu-le cu Jamaica. LITERATURE CITED BATE, S., On the genus Scorpionura. Natural History Review, 5: 203. BACESCU, M., New Cumacea from the littoral waters of Florida (Caribbean Sea). Travaux du Mustum d'histoire Naturelle "Grigore Antipa", 1 1 : BACESCU, M., Cumacea I. (Fam. Archaeocumatidae, Lampropidae, Bodotriidae, Leuconidae). In: H.E., Gruner & L. B., Holthuis, eds. Crustaceorum catalogus, Pars 7, SPB Academic Publishing, The Hague, 172 pp. BACESCU, M., 1992 a - Cumacea I1 (Fam. Nannastacidae, Diastylidae, Pseudocumatidae, Gynodiastylidae et Ceratocumatidae), In: H.E., Gruner & L. B., Holthuis, eds. Crustaceorum Catalogus, Pars 8. SPB Academic Publishing, The Hague, 296 pp. BACESCU, M., 1992 b - Deux espces nouvelles de Cumella (Crustacea, Cumacea) des grottes sousmarines de Bermuda. Travaux du Museum d'histoire Naturelle "Grigore Antipa", 32: BACESCU, M., T. M. ILIFFE, Nouvelles esptces de Cumella des grottes sous- marines de Bermude. Revue Roumaine Biologie - Biologie Animale, 36 (1-2): BACESCU, M., Z. MURADIAN, 1977 a - Cubanocuma gutzui gen. et sp. n. (Cumacea, Nannastacidae) from the tropical western Atlantic. Revue Roumaine de Biologie. Strie Biologie Animale, 22: 3-9. BACESCU, M., Z. MURADIAN, 1977 b - Species of the genus Cumella (Cumacea, Nannastacidae) from the Western Tropical Atlantic. Travaux du Museum d'histoire Naturelle "Grigore Antipa", 18: BRUM, I. DA SILVA, Oxyurostylis salinoi sp. n. do litoral brasiliero (Crustacea, Cumacea). Revista Brasiliera de Biologia, 26 (I):

62 202 IORGU PETRESCU CALMAN, W. T., On new and rare Crustacea of the Order Cumacea from the collection of the Copenhagen Museum. Part I. The Families Bodotriidae, Vaunthompsoniidae and Leuconidae. Transactions Zoological Society London, 18 (I): 6-5,29. CALMAN, W. T., On new and rare Crustacea of the Order Cumacea from the collection of the Copenhagen Museum - Part 11. The Families Nannastacidae and Diastylidae. Transactions Zoological Society London, 18 (4): CALMAN, W. T., The Crustacea of the Order Cumacea in the collection of the United States National Museum. Proceedings United States National Museum, 41 : DONATH-HERNANDEZ, H., F. E., 1988 a - Cumacea form the Gulf of Mexico and the Caribbean Sea (Crustacea, Peracarida). I: Descriptions of known species, new records and range extensions. Caribbean Journal of Science, 24 (1-2): DONATH-HERNANDEZ, H., F. E., 1988 b - Three new species of Cumacea from the Gulf of California (Crustacea, Peracarida). Cahiers Biologie Marine, 29: DONATH-HERNANDEZ, H., F. E., Cumella (Cumewingia) siankaana n. sp. from the Caribbean coast of Quintana Roo, Mexico (Cumacea Nannastacidae). Diversidad Biologica Reserva Biosfera Sian Ka' an Quintana, Roo, Mexico, 2: FAGE, L., CumacCs. In: Faune de France, 54, Paris: FERRARIS, J. D., Surface Zooplankton at Carrie Bow Cay. Pp In: Riitzler, K., I.G., McIntyre, eds. The Atlantic Barrier Reef ecosystem at Carrie Bow Cay Belize. I. Structure and communities. Smithsonian Contribution to Marine Science, 12, Washington. HANSEN, H. J., 1895: 111. Ordnung: Cumacea, Pp In: Isopoden, Cumaceen und Stomatopoden der Plankton Expedition N Atlantic. HARADA, I., Cumacean Fauna of Japan 111. Family Bodotriidae Pt. 2, genus Bodotria Goodsir, Japanese Journal of Zoology, 15 (3): HAYE, P., Family Bodotriidae (Cumacea: Crustacea). Key to subfamilies and genera. ( KENSLEY, B., Anthuridea (Crustacea: Isopoda) of Carrie Bow Cay, Belize. Pp In: K., Riitzler, I.G., McIntyre, eds. The Atlantic Barrier Reef ecosystem at Carrie Bow Cay Belize. I. Structure and communities. Smithsonian Contribution to Marine Science, 12, Washington. MARKHAM, J., W. STERRER, Order Cumacea, Pp., In: W., Sterrer, ed. Marine fauna and flora of Bermuda. John Wiley & Sons, New York. MURADIAN-CIAMICIAN, Z., On some species belonging to the genus Campylaspis (Cumacea, Nannastacidae) from the collections of the Natural History Museum "Grigore Antipa". Travaux du Mustum d'histoire Naturelle "Grigore Antipa", 21 : OMHOLT, P. E., R. W. HEARD, Cyclaspis bacescui, new species (Cumacea: Bodotriidae) from the eastern Gulf of Mexico. Journal Crustacean Biology, 2 (I): ORTIZ, M., R. R. LALANA, Lista de especies y bibliografia de 10s cn~sticeos de Cuba. 11. Cirripedia, Phyllocarida, Pancarida, Mysidacea, Tanaidacea y Cumacea. Revista de Investigaciones Marinas, 9 (2) : PETRESCU, I., Cumaceans (Crustacea: Peracarida) from Abaco Island (Bahamas). Travaux du MusCum d'histoire Naturelle "Grigore Antipa", 36: PETRESCU, I., T. M., ILIFFE, Contributions to the knowledge of the Cumacean species (Crustacea, Cumacea) of British Blue Holes (Andros Island, Bahamas Island). Travaux du MusCum Histoire Naturelle "Grigore Antipa", 32: PETRESCU, I., W. STERRER, Cumacea (Crustacea) from shallow waters of Bermuda. Annalen der Naturhistorisches Museum Wien, 103 B: PETRESCU, I., T. M. ILIFFE, S. SARBU, Contributions to the knowledge of Cumacea (Crustacea) from the littoral waters of Jamaica Island, including the description of three new species (I). Travaux du Mustum d'histoire Naturelle "Grigore Antipa", 33: PETRESCU, I., T. M. ILIFFE, S. SARBU, Contributions to the knowledge of the cumaceans (Crustacea) from Jamaica 11. Five new species of the genus Cumelln. Travaux du MusCum d'histoire Naturelle "Grigore Antipa", 34: RADHADEVI, A., C. V. KURIAN, Three new species of Cumacea from the Gulf of Mexico. Bulletin Department Marine Sciences University Cochin, 12 (1): ROCCATAGLIATA, D. C., Three new species of the genus Cyclaspis (Cumacea) from the south-west Atlantic with a redescription of Cyclaspis platymerus Zimmer, Crustaceana, 49 (2):

63 CUMACEA (CRUSTACEA) FROM BELIZE 203 ROCCATAGLIATA, D. C., On some Cyclaspis (Curnacea) from the South American Atlantic coast with the description of two new species. Crustaceana, 50 (2): ROCCATAGLIATA, D. C., R. W., HEARD, Two species of Oxyurostylis (Cnistacea: Cumacea: Diastylidae), 0. smithi Calman, 1912 and 0. lecro)iae, a new species from the Gulf of Mexico. Proceedings Biological Society Washington, 108 (4): ROCCATAGLIATA, D. C., P. S. MOREIRA, Four Cyclaspis species (Cumacea) from the South American Atlantic Coast. Crustaceana, 52 (I): RUTZLER, K., I. G. McINTYRE, The Habitat Distribution and Community Structure of the Barrier Reef Complex at Carrie Bow Cay, Belize. Pp In: K., Riitzler, I.G. Mclntyre, eds. The Atlantic Barrier Reef ecosystem at Carrie Bow Cay Belize. I. Structure and communities. Smithsonian Contribution Marine Science, 12. Washington. SARS, G. O., Beskrivelse af fire vestindiske Cumaceer opdgede af Dr. A. Goes. Ofv. Ak. Forh., 28: SARS, G. O., Beskrivelse af syv nye Cumaceer fra vestindien og det syd-atlantiske Ocean. Kongl. Svenska Vetenskaps-Akademiens Handlingar, l l (8): SARS, G. O., Middelhavets Cumaceer. Archiv Mathematik og Natuwidenskab. Kistiania, 4: STEBBPJG, T. R. R., Curnacea (Sympoda), Pp In: Fr. E. Schultze, ed. Das Tierreich, 39. Friedlander und Sohn, Berlin. WATLPJG, L., Two new genera and a new subfamily of Bodotriidae (Crustacea: Cumacea) from eastern North America. Proceedings Biological Society Washington, 89 (52): WATLING, L., L. D. McCANN, Cumacea, Pp In: Blake, J.A., P.H. Scott, eds. Taxonomic Atlas of the benthic fauna of the Santa Maria Basin and Western Santa Barbara Channel.. 11., The Crustacea Part 2. Santa Barbara Museum of Natural Historv. <. Santa Barbara. ZIMMER, C., California Crustacea of the Order Cumacea. Proceedings U.S. National Museum of Natural History, 83 (2992): ZIMMER, C., Die Verbreitung der Cumaceen. Archiev Naturgeschichte,.N.F., 9: ZIMMER, C., Cumaceen des tropischen Westatlantiks. Zoologischer Anzeiger, 144: Received: March 4, 2002 Accepted: April 19, 2002 Muzeul National de Istorie Naturaln' "Grigore Antipa" $os. Kiseleff nr. 1, Bucurefti 2 Romrinia iorgup.@antipa.ro