Frogs by State

Frogs and Toads of Maine

Frogs and Toads of Maine

Maine only has one toad species and a few frogs that fall into the tree frog and true frog families.

Frogs

Tree Frogs – Hylidae

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The Spring Peeper (Pseudacris crucifer) is very small in size compared to the only other tree frog species in Maine, the Gray Tree frog. The distinguishable feature of the Spring Peeper is the x on its back.

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The Gray Tree Frog (Hyla veriscolor) does not posses an x on its back so it can be easily identified if you can tell its a tree frog.

True Frog – Ranidae

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Northern Leopard Frog (Lithobates pipiens)

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Pickeral Frog (Lithobates palustris)

Northern Leopard Frog (Lithobates pipiens) and Pickeral Frog (Lithobates palustris) look similar to each other but the Northern Leopard Frog has round spots while the Pickeral Frog have more square shaped spots.

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The American Bullfrog (Lithobates catesbeianus) is the largest frog in Maine. It can be identified by its lack of dorsal ridge.

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The Wood Frog (Lithobates sylvaticus) is easily identified by dark stripes on its face and brownish red color.

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The Mink Frog (Lithobates septrentionalis) is very similiar to the Green Frog or American Bullfrog but the coloration on it is much different and has more black in it.

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The Green Frog (Lithobates clamitan) is often confused with the American Bullfrog but its smaller and it has a dorsal ridge.

True Toads – Bufonidae

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American Toad (Anaxyrus americanus) is the only toad species in Maine.

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