Field Guide to Maryland's Frogs and Toads (Order Anura)
American Bullfrog (Lithobates catesbeianus)
Adult American Bullfrog, photo courtesy of John White
- 3½ - 6 inches
- Record - 8 inches
- Our largest frog, plain green above with no dorsolateral ridges.
- Back sometimes has a netlike pattern of gray or brown on green.
- Undersides whitish or with yellowish or gray wash.
- Tympanum is larger than eye in males, who also may have a yellowish wash on throat.
- Prefers larger bodies of water than most frogs, it can be found in lakes, ponds, bogs, slow water of streams and rivers.
- Usually found along edges or in emergent vegetation.
Photo of American Bullfrog Habitat,
courtesy of Rebecca Chalmers
How to Find:
Distribution in Maryland:
American bullfrogs can be found throughout Maryland.
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