A small species of frog reaching up to 1.5 cm in body length. It has a grey or pale brown back, often with black patches. There is often a dark horizontal stripe between the eyes, a dark W-shaped marking on the upper back, and pale yellow eye-spots on the lower back. There is a small black stripe behind the eye. The belly is orange, yellow or brown, with pale specks. The pupil is horizontal and outlined with a red ring; the iris is gold. Fingers and toes are unwebbed, both with large discs. The first finger is very short compared to the rest.
Looks similar to Cophixalus peninsularis in its distribution, but is slightly smaller. It is possible that Cophixalus peninsularis is not a species, but has just been confused with large Cophixalus crepitans individuals.
Found only in the McIlwraith Range, in the Cape York region of QLD.
Eggs and development are unknown, but are likely to be similar to those of other Cophixalus species. Possibly breeds during spring to summer.