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

1983 2002 Leiopelmatidae Ascaphidae Ascaphus truei Ascaphus montanus Tailed Frog Rocky Mountain Tailed Frog

Hylidae Hylidae Hyla regilla Pseudacris regilla Pacific Treefrog Pacific Treefrog Pseudacris triseriata Pseudacris maculata Striped Chorus Frog Boreal Chorus Frog Ranidae Ranidae Rana pretiosa Rana luteiventris Spotted Frog 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 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 •5th toe wider than others • male with “tail ”

Tailed Frog Habitat

2 Tailed Frog Eggs

Tailed Frog (Ascaphus montanus) Tadpoles

Family Pelobatidae Great Basi n Spadefoot (Spea intermontana = Scaphiopus intermontanus)

3 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 Great Basin Spadefoot Tadpoles

Bufonidae - True Toads

Western Toad (Bufo boreas)

Woodhouse Toad (Bufo woodhousei)

Western Toad Distribution

5 Western Toad Bufo boreas

• 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 Habitat

Western Toad Reproduction

Call Eggs

6 Western Toad Tadpoles

Woodhouse’s Toad Bufo woodhousii

Woodhouse’sToad Bufo woodhousei

• Max length = 5 inches (125 mm) • green or brown with light ver tebral strip e • cranial crests • dry, wart y s kin • horizontal pupils • elongated parotoid glands • two horny tub ercles on each hind foot

7 Woodhouse’sToad Bufo woodhousii

Call Eggs

Woodhouse’s Toad Tadpole

Family Hylidae: Tree Frogs

Boreal Chorus Frog (Pseudacris maculata )

Pacific T reefrog (Pseudacris regilla)

8 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 • intercalar y cartilage

Pacific Treefrog Habitat

9 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

• intercalar y cartilage

10 Boreal Chorus Frog Habitat

Boreal Chorus Frog Reproduction

Eggs

Tadpole Call

Family Ranidae: True Frogs

Bullfrog (Rana catesbeiana)

Columbia Spotted Frog (Rana luteiventris)

Northern Leopard Frog (Rana pipiens)

Wood Frog (Rana sylvatica)

11 Bullfrog Distribution

American Bullfrog (Rana catesbeiana)

• Max length = 7.9 inches (200 mm) • green to dark olive do rsu m • cream to yellow ventrum • conspicuous tympanum (2X in males) • dorso-lateral ridges • full webbing on hind feet

Bullfrog Habitat

12 Bullfrog Reproduction

Call Eggs

Bullfrog Tadpoles

Columbia Spotted Frog Distribution

13 Columbia Spotted Frog

• Max length = 3.5 inches (89 mm) • green, tan, or olive dorsum • dark spots with fuzz y 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 Spotte d Frog Reproduction

Call Eggs

14 Columbia Spotte d Frog 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 Northern Leopard Frog Habitat

Northern Leopard Frog Reproduction

Call Eggs

Northern Leopard Frog Tadpoles

16 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 Wood Frog Reproduction

Call Eggs

Wood Frog Tadpoles

18