Pickerel Frog

 
1.75-3.5 long, smooth-skinned, tan, with parallel rows of dark squarish blotches running down the back.  Jaw has a light stripe, and dorsolateral folds are yellow.  Belly and undersurfaces of legs are bright yellow to orange.  Voice is a steady low croak.  Live in slow-moving water and other damp areas with low, dense vegetation.  Breeds in March to May.  Nocturnal, and has an irritating skin secretion which repels some predators and will kill other frogs.