A Taxonomic Revision of the Family Bagridae (Pisces, Siluriformes) from Korea

한국산 동자개과 어류의 분류학적 재검토

The morphological characters of the family Bagridae living in the river systems flowing into the south and western seas of Korea were reviewed and a taxonomic revision was made. The family Bagridae was classified into two genera: Pseudobagrus and Leiocassis. Species corresponding to genus Pseudobagrus were P. fulvidraco, P. koreanus Uchida, sp. nov., P. brevicorpus, and genus Leiocassis were L. nitidus, L. ussuriensis, and L. longirostris. Among them Pseudobagrus koreanus Uchida, sp. nov. and P. brevicorpus are endemic species of Korea. As the intergeneric taxonomic characters, the outstanding morphological differences between genera Pseudobagrus and Leiocassis were distinguished in following characters; the serrated structure of pectoral spine, the length of barbels, the number of pectoral fin rays, the structure of cranial lateral line system and the fused state of 3-4 hypurals. Pelteobagrus fulvidraco and Coreobagrus brevicorpus recorded previously in Korea were classified as Pseudobagrus fulvidraco and P. brevicorpus, respectively. Pelteobagrus nitidus and Pseudobagrus ussuriensis are also changed to genus Leiocassis. The characters of interspecific classification belonging to genera Pseudobagrus and Leiocasis were the shape of caudal fin, the form of body, the length of body, the number of anal fin ray and the number of gill rakers. Pseudobagrus sp. was named into Pseudobagrus koreanus Uchida, sp. nov..

우리나라 서남해안으로 유입되고 있는 하천 및 각 수계에 서식하는 동자개과 어류를 재검토한 결과 모두 2속 6종 즉 Pseudobagrus fulvidraco, Pseudobagrus koreanus sp. nov., P. brevicorpus, Leiocassis nitidus, L. ussuriensis, L. longirostris 등으로 분류되었다. 이 중에서 P. koreanus sp. nov.와 P. brevicorpus는 한국특산 어종이다. 지금까지 Pseudobagrus sp. 로 기재해온 눈동자개는 독립종으로 하여 Pseudobagrus koreanus Uchida로 명명하였다.