Whitetail dascyllus

phylum	Chordata	Also known as the three-stripe damsel, humbug dascyllus, banded dascyllus or white-tailed damselfish. Length up to 10 cm, they are white with three black vertical bars. For more information, visit the Wikipedia entry. Get back to Damselfish
class	Actinopterygii
order	Perciformes
family	Pomacentridae
genus	Dascyllus
species	D. aruanus

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  Yujin Humbug damselfish