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ID Keys:
Frogs Salamanders Turtles Lizards &
Snakes
How to key Glossary
Photos:
Frogs Salamanders Turtles Lizards & Snakes
Links |
Cortland Herpetology Connection
Frog Key
See also species
distribution
maps at the
New
York State
Amphibian and Reptile Atlas Project website.
Key to the families of adult frogs in New York
Key to the species of the family Pelobatidae
of New York
Key to the species of the family Bufonidae
of New York
Key to the species of the family Hylidae
of New York
1.a. |
Slight webbing on hind foot, smooth skin |
2 |
1.b. |
Extensive webbing on hind foot, warty skin |
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2.a. |
Slender dark X on back, dark triangle between eyes, toe pads moderate in
size |
Spring
peeper |
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Pseudacris crucifer |
2.b. |
Approximately three dark stripes on back, pale upper lip, narrow head,
toe pads small |
Western
chorus frog |
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Pseudacris
triseriata |
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3.a. |
Toe pads large, distinct dark dorsal blotches, light spot beneath eye,
often orange inside thighs |
Gray treefrog |
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Hyla
chrysoscelis/versicolor |
3.b. |
Toe pads absent, dark triangle between eyes, irregular blotches on back,
dark line along thigh |
Northern
cricket frog |
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Acris crepitans |
Key to the species of the family
Ranidae of New York
1.a. |
Distinct dorsal spots present |
2 |
1.b. |
No distinct dorsal spots |
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2.a. |
Dorsal spots square and in paired rows along back, often yellow or orange
inside thighs |
Pickerel
frog |
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Rana palustris |
2.b. |
Dorsal spots rounded, not paired |
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3.a. |
Pointed snout, usually a white spot on tympanum,
usually no dark spot above snout |
Southern leopard frog |
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Rana
sphenocephala |
3.b. |
Snout less pointed, no white spot on tympanum,
usually a dark spot above snout |
Northern leopard frog |
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Rana pipiens |
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4.a. |
Dark mask beneath eye and enclosing tympanum,
dorsolateral ridge distinct, body uniformly tan or brown |
Wood
frog |
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Rana sylvatica |
4.b. |
No mask |
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5.a. |
Webbing reaches tip of 4th hind toe, hind legs with dark spots or blotches,
tympanum smaller than or equal to size of
eye |
Mink
frog |
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Rana septentrionalis |
5.b. |
Webbing fails to reach tip of 4th hind toe, hind legs often with dark cross
bands, tympanum equal to or greater than
eye |
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6.a. |
Dorsolateral ridge
present on body |
Green
frog |
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Rana clamitans |
6.b. |
Dorsolateral ridge
absent |
Bullfrog |
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Rana catesbeiana |
Cortland Herpetology Connection |
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Special thanks to all those who generously loaned images and other
help. See our
credits page for more information.
http://www.cortland.edu/herp/keys/frogkey.htm |