Lab VII. Tuatara, Lizards, and Amphisbaenids

Transcription

1 Lab VII Tuatara, Lizards, and Amphisbaenids

2 Project Reminder Don t forget about your project! Written Proposals due and Presentations are given on 4/21!! Abby and Sarah will read over your written proposal once before you hand it in as long as you get it to us no later than one week before its due

3 Field Trip Reminder S. IL field trip scheduled for April RSVP to Sarah ASAP and NO LATER than March 18

4 Field Trip Location

5 Tuatara Kingdom: Anamalia Phylum: Chordata Class: Reptilia Order: Rhynchocephalia Family: Sphenodontidae Genus: Sphenodon

6 Resemble Lizards Sphenodontidae Males lack copulatory organ Well developed parietal eye with small lens and retina on top of the head Lower thermal optima Retain lower temporal arch (lost in squamates)

7 Sphenodontidae Functioning third eye

8 Lizards Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: Squamata Sub-order: Lacertilia

9 Anguidae Glass and Alligator Lizards Ophisaurus attenuatus translates to thin snake lizard Our IL species Elgaria translates to obscure

10 Elgaria

11 Ophisaurus attenuatus

12 Xenosauridae Knob scaled Lizards Shinisaurus - Chinese Crocodile Lizard Xenosaurus Knob scaled Lizards (Mexico)

13 Geckos Gekkonidae Very diverse family 2 basic groups (fixed vs movable eyelid) Tokay Gecko lovable pet? Leaf tail Gecko - Uroplatus House Gecko (Hemidactylus spp) Introduced to USA

14 World s smallest lizard Sphaerodactylus ariasae

15 Coleonyx* Ground geckos translates to sheathed claw

16 Agamidae Very cool and diverse family May not be monophyletic Moloch Draco Uromastyx gaining pet trade popularity

17 Chamaeleonidae Color changing ability Fused toes for grasping Eyes move independently

18 Corytophanidae Contains the well known Basilisk or Jesus Lizard

19 Walking on Water

20 Crotaphytidae Collared and Leopard Lizards Small granular scales, long tails Crotaphytus collaris Our IL introduced species Gambelia leopard lizard

21 Iguanidae Marine Iguana Amblyrhynchus Iguana iguana probably familiar to most people Dipsosaurus desert iguana (SW USA)

22 Sauromalus*

23 Phrynosomatidae Very common desert southwest family Callisaurus - zebra tailed lizard Holbrookia Lesser earless lizard

24 Phrynosomatidae Uta side blotched lizard Uma fringe toed lizard

25 Phrynosomatidae Phrynosoma horned lizard (video) Urosaurus Tree lizard looks like Sceloporus but without keeled scales

26 Sceloporus undulatus northern fence lizard. (look, its on a fence post!!) Phrynosomatidae

27 Anoles Polychrotidae Annoyingly popular in niche specialization research Norops sagrei Anolis equestris one of the few cool anoles Anolis carolinensis

28 Helodermatidae The best lizard family. Why? cuz they re venomous, that s why Heloderma suspectum Gila monster Heloderma horridum beaded lizard

29 Varanidae Possibly the sister taxon of snakes Only 1 genus Varanus Make great pets?

30 Lacertidae Wall Lizards Conical head on distinct neck At least 8 species are parthenogenetic

31 Scincidae Lots of world diversity 3 IL species Scincella lateralis Ground Skink Eumeces fasciatus male and female five-lined skink

32 Eumeces laticeps Broadheaded skink Scincidae

33 Teiidae Whiptails and Tegus Caiman lizard Cnemidophorous sexlineatus Black and White Tegu

34 The Amphisbaenians Worm lizards? Not really lizards, definitely not worms Not much known about them due to secretive lifestyles

35 Florida worm lizard Specialized burrower Rhineuridae* Rhineura

36 Bipedidae* Mexican worm lizards Small forelimbs used for burrowing