First record of Muraenichthys gymnopterus (Ophichthidae: Myrophinae) from east coast of India, Bay of Bengal
First record of Muraenichthys gymnopterus (Ophichthidae: Myrophinae) from east coast of India, Bay of Bengal
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印度东海岸孟加拉湾首次记录 Muraenichthys gynopterus（Ophichthidae：Myrophinae）
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
S. S. Mishra
中科院分区：
文献类型：
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作者：
A. Mohapatra;D. Ray;S. S. Mishra
介绍蛇鳗和蠕虫鳗鱼科蛇鳗包括59属。其中，45属属于蛇鳗亚科（尾尖坚硬、尖且无鳍;称为蛇鳗）1-3，14属属于鳗亚科（尾尖柔软且与背鳍和臀鳍汇合;称为蠕虫鳗）。它们总共包括蛇鳗科的260多个物种，分布在世界各地的热带和亚热带海洋。本文报道了印度洋-太平洋鳗科鳗亚科鳗属Muraenichthys Bleeker共8种，分布于热带、温带和亚热带沃茨。Scolecenchelys Ogilby以前被认为是Muraenichthys Bleeker的一个亚属，Castle和McCosker将其与后者区分开来。因此，Muraenichthys Bleeker的特征是鼻孔之间有一个小孔;后鼻孔开口于嘴外，上唇有一个沿着的孔，前面有一个皮瓣;牙齿钝，颌齿呈带状;颌间齿呈宽片。然而，日比野和木村重新定义了Muraenichthys属，并观察到该属的牙齿形状和排列显示出变化，并且在属于该属的所有物种中都存在三个前鳃盖感觉孔。在印度沃茨，Muraenichthys属有两个物种。M. gymnopterus（Bleeker，1853）在孟买发现，而M. schultzei Bleeker，1857年从安达曼群岛和鲁潘，奥卡和Kiew点（古吉拉特海岸）。为研究印度沃茨鳗鲡的多样性，在印度东海岸采集鱼类时，共采集到鳗属鳗7条。裸鳍鱼本文报道了裸鳍Muraenichthys gymnopterus（Bleeker，1853）首次在印度东海岸、孟加拉湾和奇利卡泻湖发现。
Introduction The snake eel and worm eel fish family Ophichthidae comprises 59 genera. Among these, 45 genera belong to the subfamily Ophichthinae (tail tip hard, pointed and finless; known as snake eels) 1-3 and 14 genera to the subfamily Myrophinae (tail tip flexible and confluent with dorsal and anal fins; known as worm eel) . All together, they comprise more than 260 species in the family Ophichthidae, distributed in the tropical and subtropical seas throughout the world. The genus Muraenichthys Bleeker (Ophichthidae: Myrophinae) comprise eight valid species in tropical, temperate and subtropical waters of Indo-Pacific Ocean. Scolecenchelys Ogilby, previously treated as a subgenus of Muraenichthys Bleeker, has been elevated and distinguished from the latter by Castle & McCosker. Accordingly, Muraenichthys Bleeker was distinguished in having single pore between nostrils; posterior nostril opening outside of mouth, a hole along upper lip preceded by a flap; teeth blunt, jaw teeth in bands; and intermaxillary teeth in a broad patch. However, Hibino and Kimura re-defined the genus Muraenichthys and observed that tooth shape and arrangement in the genus show variations and three pre-opercular sensory pores present in all species belonging to the genus. In Indian waters, the genus Muraenichthys is represented by two species. M. gymnopterus (Bleeker, 1853) has been recorded from Mumbai, while M. schultzei Bleeker, 1857 from Andaman Islands and from Rupan, Okha and Kiew Point (Gujarat coast). During the collection of fishes from the east coast of India for the study of the Anguilliform eel diversity in Indian waters, seven specimens of eels belonging to the genus Muraenichthys were collected and identification confirmed as M. gymnopterus. This paper reports the occurrence of Muraenichthys gymnopterus (Bleeker, 1853), for the first time from the east coast of India, Bay of Bengal and also from the Chilika lagoon.