Gobiesocidae

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Gobiesocidae (clingfish; 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.