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First Morphological Description of Ophichthus asakusae (Ophichthidae: Anguilliformes) Leptocephali Collected from the Waters South of Jeju Island

제주도 남방해역에서 채집된 제주바다뱀(Ophichthus asakusae) 엽상자어(Leptocephalus)의 첫 형태기재

  • Ji, Hwan-Sung (Fisheries Resources Management Division, National Fisheries Research and Development Institute) ;
  • Choi, Jung Hwa (Fisheries Resources Management Division, National Fisheries Research and Development Institute) ;
  • Choi, Kwang Ho (Fisheries Resources Management Division, National Fisheries Research and Development Institute) ;
  • Lee, Dong Woo (Fisheries Resources Management Division, National Fisheries Research and Development Institute) ;
  • Kim, Jin-Koo (Department of Marine Biology, Pukyong National University)
  • 지환성 (국립수산과학원 자원관리과) ;
  • 최정화 (국립수산과학원 자원관리과) ;
  • 최광호 (국립수산과학원 자원관리과) ;
  • 이동우 (국립수산과학원 자원관리과) ;
  • 김진구 (부경대학교 자원생물학과)
  • Received : 2013.06.03
  • Accepted : 2013.08.19
  • Published : 2013.10.31

Abstract

Two leptocephali [total length (TL) 68.2-80.5 mm] from the family Ophichthidae, collected from the waters south of Jeju Island, Korea, were identified using morphology. The two ophichthid leptocephali were identified as belonging to the genus Ophichthus based on morphological characters: 131-132 myomeres; nine gut swellings; dorsal fin origin above the middle of the body; five postanal pigments present from the anus to the caudal margin. Ultimately, both leptocephali were identified as Ophichthus asakusae, as the total number of myomeres was consistent with those of adult O. asakusae. Here, we first describe the morphological characteristics of the O. asakusae leptocephalus, and suggest diagnostic characters for leptocephali belonging to the genus Ophichthus.

Keywords

References

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