Division of Fisheries Science, Indian Council of Agricultural Research-Central Island Agricultural Research Institute, Port Blair, India.
Thackeray Wildlife Foundation, Mumbai, India.
J Fish Biol. 2022 Nov;101(5):1189-1198. doi: 10.1111/jfb.15189. Epub 2022 Sep 5.
Sicyopterus garra Hora, 1925 from the insular streams of South Andaman Islands was synonymized with Sicyopterus microcephalus described from Java, South East Asia and has retained this taxonomic status since then. Recent collections of Sicyopterus from the type locality of S. garra and the examination of syntypes of this species revealed significant morphological and genetic differences from S. microcephalus and the other Sicyopterus species with papillae on upper lip. S. garra is thus a valid species and not a synonym of S. microcephalus. S. garra differs from S. microcephalus in having fewer lateral scales 53-59 vs. 57-68, fewer zigzag series (12-14 vs. 13-16), a longer caudal peduncle length (16-21 vs. 13-17), and by having a high percentage of divergence in COI gene (5.5%-5.8%).
1925 年从南安达曼群岛岛屿溪流中采集到的 Sicyopterus garra Hora 与从东南亚爪哇描述的 Sicyopterus microcephalus 同义，此后一直保留这一分类地位。最近从 S. garra 的模式产地采集的 Sicyopterus 标本和对该种模式标本的检查表明，它与具有上唇乳突的其他 Sicyopterus 物种和 S. microcephalus 在形态和遗传上存在显著差异。因此，S. garra 是一个有效物种，而不是 S. microcephalus 的同义词。S. garra 与 S. microcephalus 的区别在于侧鳞数较少（53-59 对 57-68），锯齿状系列较少（12-14 对 13-16），尾柄长度较长（16-21 对 13-17），并且 COI 基因的分化率较高（5.5%-5.8%）。
