四斑蝴蝶鱼 Chaetodon capistratus sì bān hú dié yú

四斑蝴蝶鱼,体呈圆形，吻钝，呈黄色。靠近尾柄处有一白缘的大黑色斑点。体侧上具有数十条狭窄的深色的斜细纹，上半部由头部向臀鳍方向斜；下半部由腹鳍往背鳍斜，形成锯齿形。体为淡灰色，在身体侧边的颜色变化成灰白至淡黄色的，在头部上的一条黑色的条纹。尾鳍、背鳍及臀鳍鳍条各有一黑色边缘的条纹，腹鳍黄色。背鳍硬棘13枚、背鳍软条17~20枚；臀鳍硬棘3枚、臀鳍软条16~17枚。体长可达7.5厘米。

四斑蝴蝶鱼（Chaetodon capistratus）又称四眼蝶、四目蝶，属鲈形目蝴蝶鱼科、蝴蝶鱼属，为一类珊瑚礁区生存的热带海水鱼。四斑蝴蝶鱼在西大西洋分布较多，多活动于珊瑚礁丰茂的地区，觅食各类有机物碎屑及珊瑚虫等，其独特的眼状斑纹受到人们的喜爱。

百度翻译提供：

Butterfly fish with four spots, round body, blunt kiss and yellow color. There is a large black spot with a white edge near the tail handle. There are dozens of narrow dark oblique fine lines on the body side, and the upper half is inclined from the head to the hip fin; The lower part is inclined from the ventral fin to the dorsal fin, forming a sawtooth shape. The body is light gray, the color on the side of the body changes into gray white to light yellow, and a black stripe on the head. The caudal fin, dorsal fin and gluteal fin each have a stripe with a black edge, and the ventral fin is yellow. 13 dorsal fin hard spines and 17 ~ 20 dorsal fin soft spines; There are 3 hard spines and 16 ~ 17 soft spines of gluteal fin. The body length can reach 7.5cm.