fish family - any of various families of fish

order Perciformes, order Percomorphi, Perciformes, Percomorphi - one of the largest natural groups of fishes of both marine and fresh water: true perches; basses; tuna

genus Gobiesox, Gobiesox - type genus of the Gobiesocidae

clingfish - very small (to 3 inches) flattened marine fish with a sucking disc on the abdomen for clinging to rocks etc.