Frogs and Toads of Arizona
The Plains Leopard Frog’s dorsal fold is usually segmented on its lower back. It usually has a white spot on its typanum or ear drum.
The Chiricahua Leopard Frog is found in the southwestern corner of the state. It appears similar to other leopard frogs but it dorsal fold is broken into segments near its rear and they are angled inward.
The Relict Leopard Frog is found in the northwest corner of the state. The dorsal folds stop before the rear.
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 and has the dorsal fold angled inward near the rear.
The Canyon Tree Frog has rough skin and no stripes through its eyes. Its found in the western part of the state.
They have no distinct markings on its back but does have a stripe that runs through the eye.
The Lowland Burrowing Tree Frog is different than most other tree frogs in that it spends its time underground instead of in the trees.
The Pacific Tree Frog is actually a chorus frog so it is smaller than most tree frogs.
The Boreal Chorus Frog has three lines down its back
The Barking Frog is the one species of its family in the state. It has tubercles on its feet and a skin fold on the back of the head.
The Great Plains Toad has V shaped cranial crest
No cranial crest. No stripe down middle of the back. The Green Toad has elongated parotoid gland.
The Arizona Toad has a weak or no cranial crest. It’s parotoid glands are round.
No cranial crest. No stripe down middle of the back. Parotoid gland is also rather small.
The Sonoran Green Toad has a yellow / green colored dots that is surrounding by black. Its found in the southern part of the state.
The Woodhouse’s Toad has opposing L shaped cranial crests.
The Colorardo River Toad is found in the southern part of the state. The toad has a prominent cranial crest and large parotoid glands.
The Western Narrowed Mouth Toad is the only narrowed mouth toad in the state. It’s not a true toad because it lacks a parotoid gland behind its eye and doesn’t have a keratonized spade on its rear feet.
The Couch’s Spadefoot Toad differs from the other spadefoot toads in the state due to its sickle shaped spade while the others are more rounded.
The Plains Spadefoot Toad has a bony boss between its eyes that can help identify it.
The Great Basin Spadefoot Toad has a glandular boss between its eyes compared to the Plains Spadefoot Toad.
The Mexican Spadefoot Toad has no boss between its eyes.
The African Clawed Frog might be spreading diseases to native frog species. In the state of Arizona, it is illegal to be in possession of one without a permit.
Rio Grande Leopard Frog was probably introduced to the state in the 70s or 60s. The frogs could cause problems with native species.