Frogs by State

Frogs and Toads of Arizona

Frogs and Toads of Arizona

Frogs

True Frog Family – Ranidae

Common Name: Plains Leopard Frog
Scientific Name: Rana blairi
Location: 
Breeding Season: 

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.

vulnerable

Common Name: Chiricahua Leopard Frog
Scientific Name: Rana chiricahuensis
Location:
Breeding Season:

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. It is listed as a threatened species by the United States.

Relict Leopard Frog (Rana onca)
endangered

Common Name: Relict Leopard Frog
Scientific Name: Rana onca
Location: Northwest corner
Breeding Season:

The Relict Leopard Frog’s dorsal folds stop before the rear.

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Northern Leopard Frog (Rana pipiens)

Common Name: Northern Leopard Frog
Scientific Name: Rana pipiens
Location:
Breeding Season:

The Northern Leopard Frog has fairly large spots all over their body. The dorsal ridge is nearly complete.

Common Name: Lowland Leopard Frog
Scientific Name: Rana yavapaiensis
Location:
Breeding Season:

The Lowland Leopard Frog is stockier and paler than the Northern Leopard Frog and has the dorsal fold angled inward near the rear.

Tarahumara Frog (Rana tarahumarae)

Tree Frog Family – Hylidae

Common Name: Canyon Tree Frog
Scientific Name: Hyla arenicolor
Location: Western part of the state
Breeding Season:

The Canyon Tree Frog has rough skin and no stripes through its eyes. They are found along boulders and rocks above streams.

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Arizona Tree Frog (Hyla wrightorum)

Common Name: Arizona Tree Frog
Scientific Name: Hyla wrightorum
Location:
Breeding Season:

They have no distinct markings on its back but does have a stripe that runs through the eye.

Common Name: Lowland Burrowing Tree Frog
Scientific Name: Smilisca fodiens
Location:
Breeding Season:

The Lowland Burrowing Tree Frog is different than most other tree frogs in that it spends its time underground instead of in the trees.

Pacific Tree Frog

The Pacific Tree Frog is actually a chorus frog so it is smaller than most tree frogs.

Common Name: Boreal Chorus Frog
Scientific Name: Pseudacris maculata
Location:
Breeding Season:

The Boreal Chorus Frog has three lines down its back

Flesh bellied Frog Family – Craugastoridae

Common Name: Barking Frog
Scientific Name: Craugastor augusti
Location: 
Breeding Season: 

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.

Toads

True Toad Family – Bufonidae

Common Name: Great Plains Toad
Scientific Name: Anaxyrus cognatus
Location:
Breeding Season:

The Great Plains Toad has V shaped cranial crest

Common Name: Green Toad
Scientific Name: Anaxyrus debilis
Location:
Breeding Season:

No cranial crest. No stripe down middle of the back.  The Green Toad has elongated parotoid gland.

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Arizona Toad (Anaxyrus microscaphus)

Common Name: Arizona Toad
Scientific Name: Anaxyrus microscaphus
Location:
Breeding Season:

The Arizona Toad has a weak or no cranial crest. It’s parotoid glands are round.

Common Name: Red Spotted Toad
Scientific Name: Anaxyrus punctatus
Location:
Breeding Season:

No cranial crest. No stripe down middle of the back. Parotoid gland is also rather small.

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Sonoran Green Toad  (Anaxyrus retiformis)

Common Name: Sonoran Green Toad
Scientific Name: Anaxyrus retiformis
Location: Southern part of the state
Breeding Season:

The Sonoran Green Toad has a yellow / green colored dots that is surrounding by black.

Common Name: Woodhouse’s Toad
Scientific Name: Anaxyrus woodhousii
Location:
Breeding Season:

The Woodhouse’s Toad has opposing L shaped cranial crests.

Common Name: Colorado River Toad
Scientific Name: Incilius alvarius
Location: Southern part
Breeding Season:

The toad has a prominent cranial crest and large parotoid glands.

Narrow Mouthed Toad Family – Microhylidae

Common Name: Great Plains Narrowed Mouth Toad
Scientific Name: Gastrophryne olivacea
Location: 
Breeding Season:

The Great Plains 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.

Mazatlan Narrow-mouthed Toad (Gastrophryne mazatlanensis)

Spadefoot Toad Family – Scaphiopodidae

Common Name: Couch’s Spadefoot Toad
Scientific Name:Scaphiopus couchii
Location:
Breeding Season:

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.

Common Name: Plains Spadefoot Toad
Scientific Name: Spea bombifrons
Location:
Breeding Season:

The Plains Spadefoot Toad has a bony boss between its eyes that can help identify it.

Common Name: Great Basin Spadefoot Toad
Scientific Name: Spea intermontana
Location:
Breeding Season:

The Great Basin Spadefoot Toad has a glandular boss between its eyes compared to the Plains Spadefoot Toad.

Common Name: Mexican Spadefoot Toad
Scientific Name: Spea multiplicata
Location:
Breeding Season:

The Mexican Spadefoot Toad has no boss between its eyes.

Introduced

There are a few frogs that have been introduced to the state.

Common Name: African Clawed Frogs
Scientific Name: Xenopus laevis
Location:
Breeding Season:

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. It is thought that the African Clawed Frog has spread Chytrid Fungus in the wild.

Common Name: Rio Grande Leopard Frog
Scientific Name: Rana berlandieri
Location:
Breeding Season:

Rio Grande Leopard Frog was probably introduced to the state in the 70s or 60s. The frogs could cause problems with native species by competing for food.

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