六棘鼻鱼 Naso hexacanthus liù jí bí yú

六棘鼻鱼，Naso hexacanthus，为辐鳍鱼纲鲈形目刺尾鱼亚目刺尾鱼科鼻鱼属的其中一个种，体侧扁，随成长而渐呈卵形。口小。体为橄榄绿色，具淡蓝纵线或斑点，皮粗糙。成鱼头部平滑无突起；背鳍与臀鳍皆为黄褐色，并具3条不明显灰色纵带；尾柄两侧各有2枚骨板，尾鳍不延长。

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Naso hexacanthus is one of the species belonging to the genus rhinoceros of the family echinococcidae of the order perchiformes echinococcidae of the class radiofin fishes. Its body is flat on its side and gradually becomes oval with its growth. Small mouth. The body is olive green, with light blue vertical lines or spots, and the skin is rough. The head of adult fish is smooth without protrusion; Both dorsal and gluteal fins are yellowish brown, with 3 indistinct gray longitudinal bands; There are two bone plates on both sides of the caudal stalk, and the caudal fin is not extended.