The species of Mustelus Linck, 1790 occurring in the northern Indian Ocean are revised and a new species, Mustelus andamanensis sp. nov., is formally described. Previously considered to be conspecific with M. mosis Hemprich & Ehrenberg, 1899, the new species is currently only known from the Andaman Sea. The Red Sea and Arabian Sea populations of Mustelus mosis differ in vertebral counts and degree of coverage of buccopharyngeal denticles in the mouth, but these characters alone are not considered strong enough evidence to separate into two species. Mustelus andamanensis sp. nov. is genetically (based on NADH2 sequences) closest to M. mosis but differs in having a subdivided palatoquadrate (vs. palatoquadrate not divided). The new species is morphologically closest to M. widodoi White & Last, 2006, but differs in several morphological characters and on a molecular level. Mustelus stevensi White & Last, 2008 is confirmed from the northern Indian Ocean for the first time based on a single specimen taken off southeastern Myanmar. Mustelus walkeri White & Last, 2008 is found to be a junior synonym of M. antarcticus Günther, 1870. The use of buccopharyngeal patterns and vertebral counts in isolation from other morphological differences and molecular data in this genus is also discussed.

修订了发生在印度洋北部的1790年鼬种（Mustelus Linck）的物种，并增加了一种新种鼬（Mustelus andamanensis sp。）。十一月。，正式描述。该物种以前被认为与M. mosis Hemprich＆Ehrenberg（1899年）是同种的，目前仅在安达曼海中才知道。红海和阿拉伯海的鼬类种群的嘴椎骨数量和颊咽齿状体的覆盖程度不同，但仅这些特征不足以将其分为两个物种。Mustelus andamanensis SP。十一月 在遗传上（基于NADH2序列）最接近于M. mosis但不同之处在于细分后的quaquaquadrate（相对于palatoquadrate未划分）。新物种在形态上最接近M. widodoi White＆Last，2006，但是在形态学特征和分子水平上有所不同。Mustelus stevensi White＆Last，2008年，是根据从缅甸东南部起飞的单个标本首次从北印度洋确认的。Mustelus walkeri White＆Last，2008年被发现是M. antarcticusGünther，1870年的一个初级同义词。还讨论了将颊咽模式和椎骨计数与该属的其他形态学差异和分子数据隔离开来的情况。