Hibino Yusuke, Satapoomin Ukkrit, Kimura Seishi
Fisheries Research Laboratory, Mie University, 4190-172 Wagu, Shima-cho, Shima, Mie 517-0703, Japan.; Email:
Phuket Marine Biological Center, P.O. Box 60, Phuket 83000, Thailand; Email: unknown.
Zootaxa. 2015 Dec 24;4060:56-61. doi: 10.11646/zootaxa.4060.1.9.
A new worm eel, Neenchelys andamanensis, is described based on a single specimen collected from a depth of 520-531 m, Andaman Sea, eastern Indian Ocean. The new species is similar to N. daedalus, N. nudiceps, and N. similis in its total vertebral count and slender body, however, it differs from the latter three in having a shorter tail (60% TL vs. 70-76%), more numerous preanal vertebrae (77 vs. 59-71), and shorter pectoral fins (2.4% HL vs. 21-27%). Although the new species resembles N. mccoskeri in some proportional characters, the former species is distinguishable from the latter by its higher total vertebral count (221 vs. 172-184), position of the dorsal-fin origin (horizontal distance from the origin to a vertical through mid-anus 65% of trunk length vs. 46-59%) and width of the interorbital region (4.5% of head length vs. 8.2-16%). A revised key to the species of Neenchelys is provided.
基于从印度洋东部安达曼海520 - 531米深处采集的一个标本，描述了一种新的蚓鳗，即安达曼新蚓鳗（Neenchelys andamanensis）。新物种在总椎骨数和细长身体方面与戴氏新蚓鳗（N. daedalus）、裸头新蚓鳗（N. nudiceps）和似新蚓鳗（N. similis）相似，然而，它与后三者的区别在于尾较短（占全长的60%，而后三者为70 - 76%）、肛前椎骨更多（77枚，而后三者为59 - 71枚）以及胸鳍较短（占头长的2.4%，而后三者为21 - 27%）。尽管新物种在一些比例特征上与麦氏新蚓鳗（N. mccoskeri）相似，但前者与后者的区别在于其总椎骨数更多（221枚，而后三者为172 - 184枚）、背鳍起点位置（从起点到通过肛门中点的垂线的水平距离占躯干长度的65%，而后三者为46 - 59%）以及眶间隔宽度（占头长的4.5%，而后三者为8.2 - 16%）。提供了一份经修订的新蚓鳗属物种检索表。
