Florida (Southern) Cricket Frog
Acris gryllus dorsalis

Description:
Small (less than 1.3"), primarily aquatic frog with rough skin.  Usually brown, gray or greenish.  Often has a triangular mark just behind the head and between the eyes.  Inside of thigh has two dark stripes.  Has webbed hind feet.
Similar Species:
All cricket frogs have webbed feet, chorus frogs do not.  No parotoid glands like toads, no toe pads like treefrogs.

Green Treefrog
Hyla cinereai

Description:
Bright green treefrog (up to 2.25") with yellow or white stripes that extend along its sides.  Some have yellow spots.  During winter, color may change to gray.
Similar Species:
Squirrel treefrogs lack defined stripes on sides but have distinct stripe or upper lip.  Pinewoods treefrogs have spots or "windows" on inner thighs.

Barking Treefrog
Hyla gratiosa

Description:
Largest native treefrog (up to 2.7").  A pudgy treefrog, usually green with cream-colored underbelly.  Often has brown circular spots.  Light stripe bordered by purplish-brown along sides.  Large toe pads.
Similar Species:
Leopard frogs' spots are in rows.  They have lateral ridges and no toe pads.   Green treefrogs may have yellow spots but no circular brown ones.