The Sudell's frog is relatively small, reaching only 40 mm in length. It is highly variable and is generally brown, however it may also be grey, yellow or reddish on the dorsal surface with irregular darker spots or blotches.
The Sudell's frog is diminutive, reaching a maximum size of 40 millimeters. Its coloration varies widely, ranging from brown to grey, yellow, or reddish on its back, often displaying irregular darker markings or patches.