Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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First Description of the Adult Scolecenchelys aoki (Ophichthidae, Anguilliformes) Collected from the South Sea of Korea, with Comments on the Synonym Scolecenchelys borealis

한국 남해에서 채집된 동해물뱀(Scolecenchelys aoki) 성어의 첫기재 및 Scolecenchelys borealis의 동종이명에 관한 검토

  • Ji, Hwan-Sung (Fisheries Resources Management Division, National Fisheries Research and Development Institute) ;
  • Kim, Maeng Jin (Fisheries Resources Management Division, National Fisheries Research and Development Institute) ;
  • Kim, Jin-Koo (Department of Marine Biology, Pukyong National University)
  • 지환성 (국립수산과학원 자원관리과) ;
  • 김맹진 (국립수산과학원 자원관리과) ;
  • 김진구 (부경대학교 자원생물학과)
  • Received : 2013.04.22
  • Accepted : 2013.08.12
  • Published : 2013.10.31
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Abstract

Scolecenchelys borealis was first added to the Korean fish fauna based on one leptocephalus specimen (total length (TL) 59.2 mm) collected from Dokdo, in the East Sea. Recently, however, Scolecenchelys borealis has been treated as a junior synonym of Scolecenchelys aoki, necessitating review of the scientific name S. borealis. This study describes the morphological characteristics of S. aoki based on an adult specimen (TL 230.0 mm) collected from the sea south of Korea and compares its mitochondrial DNA 12S rRNA sequence with that of the S. borealis leptocephalus. The adult S. aoki is characterized by several morphological features: vertebral formula 59-55-135; preanal lateral pores 55; infraorbital pores two; teeth on upper jaw visible externally when the mouth is closed; the dorsal fin originates just behind the anus; both jaws and vomerine teeth are conical, arranged in two rows. An analysis of an 886-base paire sequence of the 12S rRNA showed that adult S. aoki was concordant with the S. borealis leptocephalus (sensu Ji et al., 2012), indicating that both are the same species.

Keywords

References

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