Donax carinatus is a species of small saltwater clam, a marine bivalve mollusc species in the family Donacidae.

These shells are triangular-shaped, elongated, with a strong sculpture and anteriorly rostrated.

The basic color of the external surface is purple and yellowish brown, with a purple interior.

[2][3] This species is present from Mexico to Colombia, in depths to 24 m.[3]

This bivalve-related article is a stub.