Occurrence in a Female of the Endemic Korean Spined Loach Iksookimia longicorpa (Pisces; Cobitidae) of a Laminar Circularis at the Base of Its Pectoral Fin

골질반을 가지고 있는 왕종개 Iksookimia longicorpa (Pisces; Cobitidae) 암컷의 출현

  • Ko, Myeong-Hun (Faculty of Biological Science and Institute for Biodiversity Research, College of Natural Science, Chonbuk National University) ;
  • Park, Jong-Young (Faculty of Biological Science and Institute for Biodiversity Research, College of Natural Science, Chonbuk National University)
  • 고명훈 (전북대학교 생물과학부.생물다양성연구소) ;
  • 박종영 (전북대학교 생물과학부.생물다양성연구소)
  • Received : 2008.09.03
  • Accepted : 2008.09.21
  • Published : 2008.09.30

Abstract

A 123.2 mm TL female of Iksookimia longicorpa with a laminar circularis at the base of its pectoral fin was collected in the Hoeya River, Korea, on May 5, 2008. The specimen had full-grown ovaries like those of normal females. Its pectoral fins were larger than those of normal females, but was smaller than those of males. The laminar circularis of the pectoral fin base was more similar to normal males in its shape but was less developed. The ovaries in the individual had about 3,148 mature eggs, with egg sizes approximately $1.26{\pm}0.11mm$.

가슴지느러미에 골질반을 가지고 있는 왕종개 암컷 1개체(전장 123.2 mm)가 2008년 5월 5일 회야강에서 채집되었다. 이 암컷은 정상적인 암컷과 마찬가지로 성숙한 난소를 가지고 있었으나 가슴지느러미는 정상적인 다른 암컷보다는 큰 반면에 정상적인 다른 수컷보다는 작았고, 골질반은 다른 정상 수컷의 골질반과 유사하였지만 미약한 발달을 보였다. 난소는 포란수 3,148개, 난경 $1.26{\pm}0.11mm$의 성숙한 알을 가지고 있었다.

Keywords

References

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