They are 6 to 8 inches long with a darkish gray-brown to black ,mottled body which is flattened and rectangular in shape. the head is triangular with flaps of skin on jaws. Fingers are free with a tactile organ shaped like a rayed star on tips. The Surinam toad has large powerful rear legs with webbed toes which are clawless.
- With her back near the water surface, the female deposits 60 to 100 eggs. They are fertilized by the male and distributed over the back of the female.
- Tiny black eyes are lidless and appear to have been put in the wrong place.