Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
권호 표지

New Record of a Worm Eel Muraenichthys gymnopterus (Anguilliformes: Ophichthidae: Myrophinae) from Korea

한국산 바다뱀과 어류 1미기록종 Muraenichthys gymnopterus (Anguilliformes: Ophichthidae: Myrophinae)

  • Kim, Byung-Gi (Department of Ocean Science, College of Natural Sciences, Inha University) ;
  • Jeong, Choong-Hoon (Research Center for Coastal Environments of Yellow Sea, Inha University) ;
  • Han, Kyung-Nam (Department of Ocean Science, College of Natural Sciences, Inha University)
  • 김병기 (인하대학교 자연과학대학 해양과학과) ;
  • 정충훈 (인하대학교 서해연안환경연구센터) ;
  • 한경남 (인하대학교 자연과학대학 해양과학과)
  • Received : 2008.12.03
  • Accepted : 2008.12.22
  • Published : 2008.12.31
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Abstract

A single specimen of the ophichthid Muraenichthys gymnopterus (254.6 mm TL) was collected from the middle Yellow Sea off Incheon, Korea. It represents the first record of the species, the genus, and the subfamily from Korea. This species is characterized by the following combination of characters: a constricted midlateral gill opening; dorsal fin origin before anus, closer to the anus than to the gill opening; blunt teeth, jaw teeth in bands, and multiserial dentition; third preopercular pore present; single infraorbital pore between anterior and posterior nostrils; brownish colour; depth and width of gill opening 43.2 times and 33.7~65.3 times in total length, respectively; eye diameter 15.0~31.0 times in head length and total vertebrae 154~161. New Korean names are proposed, "Gaet-mul-baem-a-gwa" for the subfamily Myrophinae, "Gaet-mul-baem-sok" for the genus Muraenichthys, and "Gaet-mul-baem" for M. gymnopterus.

인천 연안에서 뱀장어목 바다뱀과 어류 1개체(전장 254.6 mm)가 채집되었다. 한국에서는 미기록 종인 Muraenichthys gymnopterus로 동정되었고, 본종이 포함되는 속(Muraenichthys), 아과(Myrophinae) 역시 한국 미기록으로 확인되었다. 본 종은 아가미구멍이 수축되었고, 체측면의 중앙에 열려있으며, 등지느러미 기부는 항문보다 전방에 위치하고, 아가미구멍보다는 항문에 더 가깝다. 모든 이빨은 끝이 뭉툭하며, 하악치는 띠를 형성하고, 상악치, 하악치, 서골치의 치열은 다열형이다. 세번째 preopercular pore (전새개골공)가 있으며, 전비공과 후 비공 사이에 하나의 infraorbital pore (안하골공)가 있다. 체색은 갈색을 띠고, 아가미구멍에서의 체고에 대한 전장은 43.2배, 체폭에 대하여는 33.7~65.3배, 두장은 눈 지름의 15.0~31.0배이다. 척추골수는 154~161개이다. Subfamily Myrophinae는 "갯물뱀아과", genus Muraenichthys는 "갯물뱀속", M. gymnpopterus는 "갯물뱀"으로 각각 국명을 신칭한다.

Keywords

Acknowledgement

Supported by : Ministry of Environment

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