• 한국수산과학회지
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• 제47권6호
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• pp.888-894
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• 2014

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 = 0.000). Furthermore, their total myomeres were consistent with those of the O. macrorhynchos adult. This is the first time that the morphological characteristics of O. macrorhynchos leptocephali have been described for Korean waters, and we suggest diagnostic characteristics for the genus Ophisurus leptocephali. We hypothesize that one of the spawning grounds of O. macrorhynchos is located in the southeastern part of Jeju Island.

• 한국어류학회지
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• 제23권1호
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• pp.46-60
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• 2011

본 연구는 2005년부터 2009년까지 우리나라 주변해역에서 서식하는 바다뱀과 6속 10종의 형태형질을 조사하여 분류학적 재검토를 실시하였다. 계수에서는 척추골수가 바다뱀이 201~209개로 가장 많았으며, 둥근물뱀(178~183개), 돛물뱀(179~182개), 돌기바다뱀(153~164개), 날붕장어(152~158개), 갯물뱀(155~156개), 까치물뱀(150~154개), 자물뱀(137~148개), 갈물뱀(135-138개) 제주바다뱀(124~134개) 순으로 나타났다. 계측에서는 두장에 대한 주둥이길이(바다뱀속 27.2~31.2 vs. 날붕장어속 18.0~27.7 vs. 까치물뱀속 12.3~21.5 vs. 돛물뱀속 16.5~20.8 vs. 갯물뱀속 11.4~11.9 vs. 자물뱀속 9.1~9.4)에서 잘 구분되었다. 한국 주변해역 바다뱀과 6속 10종의 종 검색표를 처음으로 제안하였다.