黄尾刺尾鱼 Acanthurusthompsoni huáng wěi cì wěi yú

黄尾刺尾鱼，Acanthurusthompsoni体呈椭圆形而侧扁。头小，头背部轮廓随着成长而略凸出。口小，端位，上下颌各具一列扁平齿，齿固定不可动，齿缘具缺刻。背鳍及臀鳍硬棘尖锐，分别具XI棘及III棘，各鳍条皆不延长；胸鳍近三角形；尾鳍弯月形，随着成长，上下叶逐渐延长。体一致为橄榄褐至蓝灰色，但在胸鳍腋下具一大黑斑，背鳍基底末缘具一小黑斑。除尾鳍白色外，各鳍与体同色；尾柄棘沟缘为黑褐色。

百度翻译提供：

The body of Acanthurus Thompson is oval and flat on the side. The head is small, and the back contour of the head protrudes slightly with growth. The mouth is small, the end position, the upper and lower jaw have a row of flat teeth, the teeth are fixed and immovable, and the tooth margin has notches. Dorsal fin and gluteal fin hard spines are sharp, with Xi spines and III spines respectively, and each fin ray is not extended; Pectoral fins nearly triangular; The caudal fin is crescent shaped, and the upper and lower leaves gradually extend with growth. The body is olive brown to blue gray, but there is a large black spot under the armpit of the pectoral fin and a small black spot at the end edge of the base of the dorsal fin. Except that the tail fin is white, each fin is the same color as the body; The margin of spinous groove of caudal stalk is black brown.