Genus Cocotropus

A poorly known group of small cryptic velvetfishes, that often shelter in crevices, beneath coral rubble, or coral-lined algal areas on coral or rocky reefs.Species have the following combination of characters: gill membranes free from the isthmus; anus slightly anterior to anal-fin origin, dorsal fin continuous, presence of a fleshy extension to the isthmus, parallel interorbital ridges, a continuous dorsal fin, velvety scales, and pelvic fins I, 3 (Poss, 1999; Johnson 2004).