Anurans of Idaho. Recent Taxonomic Changes. Frog and Toad Characteristics

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1 Anurans of Idaho Fa mil y Genera Species Ascaphidae Tailed Frog Ascaphus 1 Bufonidae True Toads Bufo 2 Pelobatidae Spadefoots Spea (Scaphiopus) 1 Hylidae Tree frogs Pseudacris 2 Ranidae True Frogs Rana 4 Recent Taxonomic Changes Leiopelmatidae Ascaphus truei Tailed Frog 1983 Hylidae Hyla regilla Pacific Treefrog Pseudacris triseriata Striped Chorus Frog Ranidae Rana pretiosa Spotted Frog 2002 Ascaphidae Ascaphus montanus Rocky Mountain Tailed Frog Hylidae Pseudacris regilla Pacific Treefrog Pseudacris maculata Boreal Chorus Frog Ranidae Rana luteiventris Columbia Spotted Frog Frog and Toad Characteristics Size Color pattern Body shape Head shape Skin texture Tympanum Dorsolateral folds Eye size and placement Pupil shape Glands Toe shape and length Tubercles 1

2 Tailed Frog Distribution Family Ascaphidae Tailed Frog (Ascaphus montanus) Max length= 2 inches (51 mm) brown to gray Smooth to warty skin tympanum absent vertical pupils 5 th toe wider than others male with tail Tailed Frog Habitat 2

3 Tailed Frog Eggs Tailed Frog (Ascaphus montanus) Tadpoles Family Pelobatidae Great Basin Spadefoot (Spea intermontana = Scaphiopus intermontanus) 3

4 Family Pelobatidae Great Basin Spadefoot Max length = 2.5 inches (65 mm) gray with light stripes Relatively smooth skin tympanum inconspicuous vertical pupils black, sharp-edged "spade" on the underside of each hind foot Great Basin Spadefoot Habitat Great Basin Spadefoot Reproduction Call Eggs 4

5 Great Basin Spadefoot Tadpoles Bufonidae - True Toads Western Toad (Bufo boreas) Woodhouse Toad (Bufo woodhousei) Western Toad Distribution 5

6 Max length = 5 inches (125 mm) green or brown with light ver tebral strip e dry, wart y s kin horizontal pupils conspicuous parotoid glands two horny tub ercles on each hind foot Western Toad Bufo boreas Western Toad Habitat Western Toad Reproduction Call Eggs 6

7 Western Toad Tadpoles Woodhouse s Toad Bufo woodhousii Max length = 5 inches (125 mm) green or brown with light vertebral strip e cranial crests dry, wart y s kin horizontal pupils elongated parotoid glands two horny tub ercles on each hind foot Woodhouse stoad Bufo woodhousei 7

8 Woodhouse stoad Bufo woodhousii Call Eggs Woodhouse s Toad Tadpole Family Hylidae: Tree Frogs Boreal Chorus Frog (Pseudacris maculata ) Pacific Treefrog (Ps eudacris regilla) 8

9 Pacific Treefrog Distribution Pacific Treefrog Pseudacris (= Hyla) regilla Max length = 1.9 inches (47 mm) color polymorphic dark mas k moist, smooth skin long toes, large toe pads intercalary cartilage Pacific Treefrog Habitat 9

10 Pacific Treefrog Reproduction Call Eggs Tadpole Boreal Chorus Frog (Pseudacris maculata) Boreal Chorus Frog Max length = 1.5 inches (38 mm) color polymorphic dark stripe through eye usually 3 longitudinal dorsal stripes pointed snout moist, smooth skin small toe pads intercalary cartilage 10

11 Boreal Chorus Frog Habitat Boreal Chorus Frog Reproduction Eggs Call Tadpole Family Ranidae: True Frogs Bullfrog (Rana catesbeiana) Columbia Spotted Frog (Rana luteiventris) Northern Leopard Frog (Rana pipiens) Wood Frog (Rana sylvatica) 11

12 Bullfrog Distribution American Bullfrog (Rana catesbeiana) Max length = 7.9 inches (200 mm) green to dark olive dorsum cream to yellow ventrum conspicuous tympanum (2X in males) dorso-lateral ridges full webbing on hind feet Bullfrog Habitat 12

13 Bullfrog Reproduction Call Eggs Bullfrog Tadpoles Columbia Spotted Frog Distribution 13

14 Columbia Spotted Frog Max length = 3.5 inches (89 mm) green, tan, or olive dorsum dark spots with fuzzy edges yello w, orange, or red vent rum upturned eyes full webbing on hind feet breeding males with nuptial pads, enlarged forearms Columbia Spotted Frog Habitat Columbia Spotted Frog Reproduction Call Eggs 14

15 Columbia Spotte d Fr og Tadpoles Northern Leopard Frog Distribution Northern Leopard Frog Rana pipiens Max length = 4 inches (100 mm) green or brown dorsum dark oval spots bordered b y a light ring whi te ventrum full webbing on hind feet breeding males with nuptial pads 15

16 Northern Leopard Frog Habitat Northern Leopard Frog Reproduction Call Eggs Northern Leopard Frog Tadpoles 16

17 Wood Frog Distribution Wood Frog (Rana sylvatica) Max length = 2 inches (50 mm) gray, green, or brown dorsum dark mas k with con trasting light lip line may have light vertebral stripe Wood Frog Habitat?? 17

18 Wood Frog Reproduction Call Eggs Wood Frog Tadpoles 18