First Morphological Description and the Distribution of Ophisurus macrorhynchos (Anguilliformes: Ophichthidae) Leptocephalus Collected from Southeastern Waters of Jeju Island
First Morphological Description and the Distribution of Ophisurus macrorhynchos (Anguilliformes: Ophichthidae) Leptocephalus Collected from Southeastern Waters of Jeju Island
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济州岛东南海域采集的蛇尾蛇（鳗形目：蛇头科）细头蛇的首次形态描述和分布
DOI：
10.5657/kfas.2014.0888
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Jin
中科院分区：
文献类型：
--
作者：
Hwan;J. Choi;K. Choi;S. Yoon;Dong Woo Lee;Jin
从济州岛东南部沃茨和韩日中间带采集了17条蛇鳗科（Ophichthidae）细头鱼（leptocephali）标本，经形态学和遗传学鉴定。这些标本根据各种形态特征的组合被鉴定为属于蛇鳗亚科：总肌节211-215个;肠鞘7个; 2个肝叶与第二叶上的胆囊相连;肛门后色素从肛门到尾缘存在6-7个。通过对12 S rRNA部分序列（849 bp）的分析，发现该标本与大吻蛇鳗（Ophisurus macrorhynchos）的线粒体DNA序列一致，表明该标本为大吻蛇鳗。大吻鱼（遗传距离
Seventeen specimens of leptocephali [9.8-44.5 mm total length (TL)], of the family Ophichthidae, were collected from southeastern waters off Jeju Island and the Korea-Japan intermediate zone, and identified by means of morphology and genetics. These specimens were identified as belonging to the subfamily Ophichthinae based on various combinations of morphological characters: 211-215 total myomeres; 7 gut swellings; 2 liver lobes connected with the gall bladder on the second lobe; 6-7 postanal pigments present from anus to caudal margin. An analysis of the partial 12S rRNA sequences (849 base pairs) of mitochondrial DNA showed that our specimens must be Ophisurus macrorhynchos because their sequences were concordant with those of the adult O. macrorhynchos (genetic distance