大眼鼻鱼 Naso tergus dà yǎn bí yú

大眼鼻鱼，【Naso tergus】体呈椭圆形而侧扁，体长为体高之2.8-2.9倍；尾柄部有二个盾状骨板，各有一个龙骨突。头小，头背弧形，成鱼在前头部无角状突起，亦无瘤状突起。口小，端位，上下颌各具一列齿，齿稍侧扁且尖锐，两侧或有锯状齿，上颌具齿约100-120颗，下颌约90-110颗。眼大，达标准体长之6.3-7.2%。背鳍具II棘和26-30软条(主要28)，臀鳍具II棘和26-28软条(主要27)，各鳍条皆不延长；尾鳍截平或略为内凹，上下叶不延长。体背侧褐色至灰绿色，体侧无任何斑纹，体腹侧略为淡色；鳃膜暗褐色。成鱼最大体长约为35公分，小于大部分鼻鱼物种。栖所生态本种主要为底栖性，以底栖之甲壳类及螺贝类为食。

百度翻译提供：

Naso tergus is oval and flat on the side, and its body length is 2.8-2.9 times of its body height; There are two shield bone plates at the tail handle, each with a keel process. The head is small and the back of the head is curved. The adult fish has no horn like protrusion or tumor like protrusion in the front head. The mouth is small, with an end position. The upper and lower jaw have a row of teeth respectively. The teeth are slightly flat and sharp, and there are sawtooth teeth on both sides. There are about 100-120 teeth in the upper jaw and about 90-110 teeth in the lower jaw. The eyes are large, reaching 6.3-7.2% of the standard body length. The dorsal fin has II spines and 26-30 soft strips (mainly 28), the gluteal fin has II spines and 26-28 soft strips (mainly 27), and each fin is not extended; The caudal fin is flat or slightly concave, and the upper and lower leaves do not extend. The dorsal side of the body is brown to grayish green, there are no markings on the side of the body, and the ventral side of the body is slightly light; The gill membrane is dark brown. The maximum body length of adult fish is about 35 cm, which is smaller than that of most rhinoceros species. Habitat ecology this species is mainly benthic and feeds on benthic crustaceans and shellfish.