黄蝴蝶鱼 Chaetodon semilarvatus (Cuvier, 1831) huáng hú dié yú

黄蝴蝶鱼，Chaetodon semilarvatus (Cuvier, 1831)，蝴蝶鱼科蝴蝶鱼属的一种观赏鱼。体高而呈椭圆形；头部上方轮廓略平直，颈部略突，鼻区处凹陷。吻尖，略突出。前鼻孔具鼻瓣。前鳃盖缘具细锯齿；鳃盖膜与峡部相连。上下颌齿各具7-8列。体被大型鳞片，菱形；侧线向上陡升至背鳍第9-10棘下方而下降至背鳍基底末缘下方。该蝴蝶鱼种是蝴蝶鱼中最具有代表性的鱼种。

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Chaetodon semilarvatus (Cuvier, 1831), an ornamental fish of the genus Phalaenopsis in the family Phalaenopsis. The body is tall and oval; The contour above the head is slightly straight, the neck is slightly protruding, and the nose area is concave. Snout pointed, slightly prominent. Anterior nostril with nasal flap. Anterior operculum margin serrulate; The operculum is connected to the isthmus. The upper and lower teeth have 7-8 rows respectively. The body is covered with large scales, rhombic; The lateral line rises steeply upward below the 9th-10th spine of the dorsal fin and falls below the end edge of the base of the dorsal fin. The butterfly fish species is the most representative among the butterfly fish species.