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Anurans of IdahoFa 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
1983Leiopelmatidae
Ascaphus trueiTailed Frog
HylidaeHyla regilla
Pacific TreefrogPseudacris triseriata
Striped Chorus FrogRanidae
Rana pretiosaSpotted Frog
2002Ascaphidae
Ascaphus montanusRocky Mountain Tailed Frog
HylidaePseudacris regilla
Pacific TreefrogPseudacris maculata
Boreal Chorus FrogRanidae
Rana luteiventrisColumbia 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
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Tailed Frog Distribution
Family AscaphidaeTailed 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
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Tailed Frog Eggs
Tailed Frog (Ascaphus montanus) Tadpoles
Family PelobatidaeGreat Basin Spadefoot
(Spea intermontana =Scaphiopus intermontanus)
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Family PelobatidaeGreat 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
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Great Basin Spadefoot Tadpoles
Bufonidae - True Toads
Western Toad (Bufo boreas)
Woodhouse Toad (Bufo woodhousei)
Western Toad Distribution
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Western ToadBufo boreas
• Max length = 5 inches (125 mm)
• green or brown with light ver tebral strip e
• dry, warty s kin
• horizontal pupils
• conspicuous parotoid glands
• two horny tub ercles on each
hind foot
Western Toad Habitat
Western Toad Reproduction
Call Eggs
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Western Toad Tadpoles
Woodhouse’sToad
Bufo woodhousii
Woodhouse’sToadBufo woodhousei
• Max length = 5 inches (125 mm)
• green or brown with light ver tebral strip e
• cranial crests
• dry, warty s kin
• horizontal pupils
• elongated parotoid glands
• two horny tub ercles on each hind foot
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Woodhouse’sToadBufo woodhousii
Call Eggs
Woodhouse’s Toad Tadpole
Family Hylidae: Tree Frogs
Boreal Chorus Frog (Pseudacris maculata )
Pacific Treefrog (Pseudacris regilla)
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Pacific Treefrog Distribution
Pacific TreefrogPseudacris (= 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
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Pacific Treefrog Reproduction
Call Eggs
Tadpole
Boreal Chorus Frog(Pseudacris maculata)
Boreal Chorus Frog
• Max length = 1.5 inches (38 mm)
• color polymorphic
• dark str ipe through e ye
• usually 3 longitudinal dorsal
stripes
• pointed snout
• moist, smooth skin
• small toe pads
• intercalar y cartilage
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Boreal Chorus Frog Habitat
Boreal Chorus Frog Reproduction
Call
Eggs
Tadpole
Family Ranidae: True Frogs
Bullfrog (Rana catesbeiana)
Columbia Spotted Frog (Rana luteiventris)
Northern Leopard Frog (Rana pipiens)
Wood Frog (Rana sylvatica)
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Bullfrog Distribution
American Bullfrog (Rana catesbeiana)
• Max length = 7.9 inches
(200 mm)
• green to dark olive dorsum
• crea m to yellow ventrum
• conspicuous tympanum
(2X in males)
• dorso-lateral ridges
• full webbing on hind fee t
Bullfrog Habitat
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Bullfrog Reproduction
Call Eggs
Bullfrog Tadpoles
Columbia Spotted Frog Distribution
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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
ventrum
• upturned e yes
• full webbing on hind feet
• breeding males with nuptial pads, enlarged forearms
Columbia Spotted Frog Habitat
Columbia Spotted Frog Reproduction
Call
Eggs
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Columbia Spotted 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
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Northern Leopard Frog Habitat
Northern Leopard Frog Reproduction
Call Eggs
Northern Leopard Frog Tadpoles
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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?
?
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Wood Frog Reproduction
Call Eggs
Wood Frog Tadpoles
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