Small usually scaleless fishes with comb-like teeth living about rocky shores; are territorial and live in holes between rocks WordNet 3.0 & Open English WordNet

Combtooth blennies are blenniiformids; percomorph marine fish of the family Blenniidae, part of the order Blenniiformes. Wikipedia

Family of fishes Wikidata

A true blenny, any of various marine fishes from the suborder Blennioidei or order Blenniiformes that are generally small and elongated which dwell on the sea floor, including scaled and scaleless forms and dramatically divergent appearance, in several families. Wiktionary

Any of the perciform marine fish of the family Blenniidae, with large spiny dorsal fins. Wiktionary