Lim Kean Chong, White William T, Then Amy Y H, Naylor Gavin J P, Arunrugstichai Sirachai, Loh Kar-Hoe
Institute of Ocean and Earth Sciences, Universiti Malaya, Kuala Lumpur 50603, Malaysia.
Institute of Advanced Studies, Universiti Malaya, Kuala Lumpur 50603, Malaysia.
Animals (Basel). 2022 Mar 8;12(6):681. doi: 10.3390/ani12060681.
Previous examination of the mitochondrial gene and morphological characteristics led to the resurrection of as a second valid species in the genus, in addition to . This study applied an integrated taxonomic approach to revisit the classification of the genus based on new materials from the Malaysian Peninsula, Malaysian Borneo and Eastern Bay of Bengal. Mitochondrial DNA data suggested the possibility of three species of in the Indo-West Pacific, while the nuclear DNA data showed partially concordant results with a monophyletic clade of and paraphyletic clades of and cf. from the Malacca Strait. Morphological, meristic and dental characteristics overlapped between the three putative species. Collective molecular and morphological evidence suggested that the differences that exist among the non-sympatric species of are consistent with isolation by distance, and remains as a valid species, while cf. is assigned as . The Malacca Strait acts as a spatial delineator in separating the Pacific (including South China Sea) from the Northern Indian Ocean . Future taxonomic work should focus on clarifying the taxonomic status of from the Indonesian waters.
先前对线粒体基因和形态特征的研究使得除了[某物种]之外，[另一物种]作为该属中的第二个有效物种得以重新分类。本研究采用综合分类方法，基于来自马来西亚半岛、马来西亚婆罗洲和孟加拉湾东部的新材料，重新审视该属的分类。线粒体DNA数据表明，在印度-西太平洋地区可能存在三种[该属物种]，而核DNA数据显示出部分一致的结果，即[某物种]形成一个单系分支，而来自马六甲海峡的[其他相关物种]和[疑似某物种]则形成并系分支。这三个假定物种之间在形态、可数性状和牙齿特征上存在重叠。综合分子和形态学证据表明，[该属]非同域分布物种之间的差异与距离隔离一致，[某物种]仍为有效物种，而[疑似某物种]被归为[另一物种]。马六甲海峡是将太平洋（包括南海）与北印度洋分隔开来的空间分界线。未来的分类学工作应侧重于阐明来自印度尼西亚水域的[某物种]的分类地位。
