Whitetail dascyllus
Fish
Dascyllus aruanus, known commonly as the whitetail dascyllus or humbug damselfish among other vernacular names, is a species of marine fish in the family Pomacentridae. Wikipedia
Scientific name: Dascyllus aruanus
Family: Pomacentridae
Class: Actinopterygii
Genus: Dascyllus
Kingdom: Animalia
Phylum: Chordata