Frogs by Country

Frogs and Toads of Ontario, Canada

Frogs and Toads of Ontario, Canada


True Frog Family – Ranidae

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American Bullfrog (Lithobates catesbeianus)

The American Bullfrog is the largest frog in the country. It does not have a dorsal ridge.

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Green Frog (Lithobates clamitans)

The Green Frog’s dorsal ridge is incomplete but runs most of the way down its back.

Mink Frog (Rana septentrionalis)

The Mink Frog lacks a dorsal ridge or barely has one. Its marbled or speckled on its back.

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Northern Leopard Frog (Lithobates pipiens)

Pickeral Frog (Lithobates palustris)

The Northern Leopard Frog has circular spots over its body while the  Pickeral Frog has more square like dots.

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Wood Frog (Lithobates sylvaticus)

The Wood Frog has a dark mask around its face.

Tree Frog Family – Hylidae

Eastern Gray Tree Frog (Hyla versicolor)

The Eastern Gray Tree Frog does not have any distinct markings on its body. It has yellowish orange on its hind legs and is the largest tree frog in the province.

Spring Peeper (Pseudacris crucifer)

The Spring Peeper has an X shape marking on its back.

Boreal Chorus Frog (Pseudacris maculata)

The Boreal Chorus Frog has three lines down its back.


True Toad Family – Bufonidae

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American Toad (Anaxyrus americanus)

The American Toad is the only toad in the whole province.


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