; subclass Actinopterygii, order Gobiesociformes)
A large family of small, marine, shallow-water fish, that have a powerful sucking disc formed by the pelvic fins which are placed ahead of the pectorals, a depressed head with a wide mouth, and a rather flat, scaleless body. Many species are found close inshore among kelp beds, but some occur in fresh water. There are about 100 species, found world-wide.
Subjects: Zoology and Animal Sciences.