Field Guide to Maryland's Frogs and Toads (Order Anura)

Field Guide to Maryland's Frogs and Toads (Order Anura)

True Frogs (Family Ranidae)

Sillouette of frog True frogs have long powerful hind legs with webbed feet.  They have relatively stout waists and large broad mouths. The toes do not have discs or pads at the tips as in the treefrogs (Hylidae). All of the true frogs found in Maryland have smooth skin with no bumps or tubercles, and most have ridges that run along the sides of the back (dorsolateral ridges). All Maryland frogs in Family Ranidae are in the genus Lithobates.

Many true frog tadpoles grow relatively large and may have an extended larval stage (up to three years). They can be found in many types of water bodies from ephemeral pools to permanent lakes, ponds and flowing streams.

Frog and Toad Anatomy

Click on species name for profiles
of each of the 7 species of true frogs found in Maryland.

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PhotoCommon NameScientific NameState Status
Adult American Bullfrog, photo courtesy of John White
Adult American Bullfrog, photo courtesy of John White

​American Bullfrog

Lithobates catesbeiana
Adult Carpenter Frog, photo courtesy of Corey Wickliffe
Adult Carpenter Frog, photo courtesy of Corey Wickliffe
Carpenter Frog
Lithobates virgatipes

State listed as Watchlist, indicating rare to uncommon.If you find any please contact DNR’s Wildlife and Heritage Service.

Adult Northern Green Frog, photo courtesy of John White
Photo of Adult Northern Green Frog courtesy of John White

Northern Green Frog​​

Lithobates clamitans melanota
Northern Leopard Frog, photo courtesy of Stephanie Desranleau
Photo of Northern Leopard Frog courtesy of Stephanie Desranleau

Northern Leopard Frog​​

Lithobates pipiens
Adult Pickerel Frog, photo courtesy of Scott A. Smith
Adult Pickerel Frog, photo courtesy of Scott A. Smith

 

​Pickerel Frog

Lithobates palustris

Southern Leopard Frog, photo courtesy of Scott A. Smith
Southern Leopard Frog, photo courtesy of Scott A. Smith

Southern Leopard Frog
Lithobates sphenocephalus utricularius

Adult Wood Frog, photo courtesy of John White
Adult Wood Frog, photo courtesy of John White

​Wood Frog

Lithobates sylvaticus