Kou Qi, Chen Jun, Li Xinzheng, He Lisheng, Wang Yong
Department of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.
Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
Integr Zool. 2017 Jul;12(4):283-291. doi: 10.1111/1749-4877.12256.
Several specimens of the giant deep-sea isopod genus Bathynomus were collected by a deep-sea lander at a depth of 898 m near Hainan Island in the northern South China Sea. After careful examination, this material and the specimens collected from the Gulf of Aden, north-western Indian Ocean, previously reported as Bathynomus sp., were identified to be the same as a new species to the genus. Bathynomus jamesi sp. nov. can be distinguished from the congeners by: the distal margin of pleotelson with 11 or 13 short straight spines and central spine not bifid; uropodal endopod and exopod with distolateral corner slightly pronounced; clypeus with lateral margins concave; and antennal flagellum extending when extended posteriorly reaches the pereonite 3. In addition, Bathynomus jamesi sp. nov. is also supported by molecular analyses based on mitochondrial COI and 16S rRNA gene sequences. The distribution range of the new species includes the western Pacific and north-western Indian Ocean.
在南海北部海南岛附近898米深处，一个深海着陆器采集到了几只巨型深海等足类动物 Bathynomus 属的标本。经过仔细检查，这些标本以及先前报道为 Bathynomus 属物种的、从印度洋西北部亚丁湾采集的标本，被鉴定为该属的一个新物种。新物种詹姆斯氏深海等足虫（Bathynomus jamesi sp. nov.）可通过以下特征与同属其他物种区分开来：尾节远端边缘有11或13根短直刺，中央刺不分叉；尾足内肢和外肢的远端外角略微突出；唇基侧缘凹陷；触角鞭节向后伸展时可延伸至第3胸节。此外，基于线粒体细胞色素氧化酶亚基I（COI）和16S核糖体RNA（rRNA）基因序列的分子分析也支持詹姆斯氏深海等足虫为新物种这一结论。该新物种的分布范围包括西太平洋和印度洋西北部。
