3/4 - 1 1/4 inches
of the state. Like the eastern narrowmouth toad, the great plains
narrowmouth toad, has a plump, flattened body with a comparatively
small head, and a fold of skin behind the eyes to act as a wiper while
feeding on their favorite prey, ants and termites. This secretive
frog is a nocturnal species, prefering to spend most of the day under
moist logs and in burrows, and has an unusual symbiotic relationship
(mutualism) with the Oklahoma brown tarantula, Aphonapelma hentzi.
The tarantula provides protection for the frogs from would-be predators,
and the frogs protect the tarantulas from small ants that could pose
a potential threat to the tarantulas and their spiderlings. These
frogs breed during the summer and the males call can be easily identified
as a short buzzing sound somewhat like a lamb.