Frogs and Toads of Nevada
The Northern Leopard Frog has fairly large spots all over their body. The dorsal ridge is nearly complete.
The Lowland Leopard Frog is stockier and paler than the Northern Leopard Frog.
The Relict Leopard Frog is a candidate for endangered species protection. The dorsal folds on the frog end well before the groin. It also has shorter legs than the Northern Leopard Frog.
The Sierra Nevada Yellow-legged Frog is found along the border with California but is probably extinct in Nevada.
The Columbia Spotted Frog has small spots all over their body that are often lighter on the inside.
Pacific Tree Frog has the stripe through its eye but no stripes down its back.
The Canyon Tree Frog lacks a stripe that runs through its eye.
The Arizona Toad is found in the southeast corner of the state. The toad has weak or no cranial crests.
The Red Spotted Toad has a small flattened head and body with weak or no cranial crest. It is found in the southern part of the state.
The Great Plains Toad has a well defined cranial crest that forms a V shape.
The Western Toad has no cranial crests and has a white line down its back.
The Woodhouse’s Toad has well defined cranial crest that form opposing L shapes.
The Amargosa Toad is found in the Oasis Valley. It has no cranial crest and has a stripe down its back like the Western Toad. The difference between the two is that the Amargosa Toad has a more slender head, less blunt snout, and shorter limbs.
Great Basin Spadefoot Toad is the only spadefoot toad in the state of Washington. It has a spade on each of its rear feet which make it easy to distinguish.
The American Bullfrog is the largest native frog in the United States. There is no dorsal ridge that runs down its back on the American Bullfrog. This is the distinguishable characteristics of the frog. It has a negative effect on native animals including other frogs.