The coral crouchers, or orbicular velvetfishes, are a family, the Caracanthidae, of Scorpaeniform

Scorpaeniformes

Scorpaeniformes is an order of ray-finned fish, but it has also been called the Scleroparei.They are known as "mail-cheeked" fishes due to their distinguishing characteristic, the suborbital stay: a backwards extension of the third circumorbital bone across the cheek to the preoperculum, to which...

 fishes. They live in coral reefs of the tropical Indo-Pacific. Only four species are known.

Like their close relatives the velvetfish

Velvetfish

Little velvetfishes or simply velvetfishes are a family, the Aploactinidae, of scorpaeniform fishes.As the name implies, they are small fish that have skin with a velvet texture. They are generally flattened in shape, with small pelvic fins, and a fleshy pad under the head, which, in at least one...

es, they have compressed bodies and a velvety skin. They have small pectoral fins, which they use to wedge themselves into crevices in the coral, and greatly reduced pelvic fins.