- Hind feet are fully webbed (not so in R. catesbeiana).
dorsolateral folds absent.
Narrow and pointed head.
- Dorsal surface varies from olive to dark brown with prominent dark dorsal spots.
Ventral surfaces white or pale yellow with gray mottling on thighs.
Rana grylio is a large frog species, reaching 8-13 cm (3.2-5.5 in).
In North America, Rana grylio is found in the southern U. S., from South Carolina to east Texas.
Rana grylio is nocturnal and usually difficult to approach. The pig frog is territorial and feeds primarily on crawfish, but eats minnows, snakes, and smaller frogs.
Breeding in Rana grylio takes place from March to September.
Rana grylio is seen in large bodies of water, such as lakes and marshes amid floating vegetation.
The pig frog is not a protected species in Texas and can be legally collected with a hunting license.
In Texas, Rana grylio is restricted to the southeastern corner of the state.