1) Family acanthuridae 2) Fish family 3) Surgeonfishes 
The Acanthuridae are the family of surgeonfishes, tangs, and unicornfishes. The family is composed of marine fish living in tropical seas, usually around coral reefs. Many of the species are brightly colored and popular for aquaria. The distinctive characteristic of the family is the scalpel-like spines, one or more on either side of the tail (`t....
[n] - surgeonfishes
family Acanthuridae noun surgeonfishes