1) Damselfishes 2) Family pomacentridae 3) Fish family 
The Pomacentridae are a family of perciform fish, comprising the damselfishes and clownfishes. They are primarily marine, while a few species inhabit freshwater and brackish environments (e.g., Neopomacentrus aquadulcis, N. taeniurus, Pomacentrus taeniometopon, Stegastes otophorus). They are noted for their hardy constitutions and territoriality. ...
[n] - damselfishes
family Pomacentridae noun damselfishes