ICAR-National Bureau of Fish Genetic Resources, Lucknow, India.
Faculty of Fisheries Science, Kerala University of Fisheries and Ocean Studies, Kochi, India.
J Fish Biol. 2023 May;102(5):1245-1252. doi: 10.1111/jfb.15367. Epub 2023 Mar 25.
A new species of deep-water conger eel, Rhynchoconger bicoloratus sp. nov., is described herein based on three specimens collected from the deep-sea trawlers landing at Kalamukku fishing harbour, off Kochi, Arabian Sea, from a depth beyond 200 m. The new species is distinguished from its congeners by having the following combination of characters: head larger than trunk, rictus at posterior margin of pupil, dorsal fin origin slightly before the pectoral fin insertion, eye diameter 1.7-1.9 times in snout length, ethmovomerine teeth patch broader than long with 41-44 recurved pointed teeth in six or seven rows, vomerine teeth patch pentagonal shaped with single tooth on posterior end, 35 pre-anal vertebrae, body bicoloured, peritoneum and stomach black. Genetically, the new species differs from its congeners with a divergence of 12.9%-20.1% in the mitochondrial COI gene.
本文描述了一种深海康吉鳗新种，双色康吉鳗 Rhynchoconger bicoloratus sp. nov.，基于从阿拉伯海科钦附近卡兰穆库渔港深海拖网渔船捕获的三个标本，这些标本来自 200 米以上的深海。新种与同属的其他种的区别在于具有以下特征组合：头部大于躯干，瞳孔后缘有齿状突，背鳍起点略在前胸鳍插入处，眼睛直径为吻长的 1.7-1.9 倍，鼻甲齿斑块宽于长，有 41-44 个向后弯曲的尖牙，有六到七排，犁骨齿斑块五角形，后端有单个齿，35 个前肛椎，身体双色，腹膜和胃黑色。在遗传上，新种与同属的其他种在线粒体 COI 基因上的差异为 12.9%-20.1%。
