韓國産 동자개科 魚類의 分類學的 硏究 = A Taxonomic Study of the Family Bagridae from Korea

다국어 초록 (Multilingual Abstract)

The taxonomy of the species of the family Bagridae from Korea is reviewed and the keys to the following eight species of Korean bagrid fishes are presented: Pelteobagrus fulvidraco (RICHARDSON), P. nitidus (SAUVAGE and THIERSANT), Pseudobagrus ussuriensis (DIBOWSKY), Ps. sp. UCHIDA, Leiocassis longirostris GU¨NTHER, Coreobagrus brevicorpus MORI, Liobagrus andersoni REGAN, and L. mediadiposalis MORI.
Among them P. nitidus, previously known only from Chinese waters, is firstly recorded from 26 specimens collected mainly off the lower course along the Geum River in the present study. Comparison with P. vachelli of which many paper have recorded from Korea, shows that P. nitidus differs from it in number of gill raker(9-11) and in the short length of its maxillary barbels.
The 36 bagrid specimens, which were collected in the Han and Geum River in this study was identified as Pseudobagrus ussuriensis of which the species identification was not confirmed formerly in Korea. The critical examinations of the specimens and the previous discriptions refered to Ps. ussuriensis and Ps. emerginatus SOWERBY (Not REGAN) revealed that Ps. emerginatus mostly used in Korea is a synonym of Ps. ussuriensis.
Ps. sp. UCHIDA is clearly distinguishable from other twelve relative species of the genus Pseudobagrus on the bases such as the length of maxillary barbel, serrate structure on the anterior part of pectoral spine, and several morphometric characters. Therefore Pseudobagrus sp. is regarded as a valid species.
The six atypical specimens of the genus Liobagrus collected in the Geum River are considered to be natural hybrid between L. andersoni and L. mediadiposalis on the basis of the length of jaw and of the number of feeble teeth on the posterior part its pectoral spine.
Interspecific relationships were investigated in the species of Korean bagrid fishes on the basis of the features of the morphological characters and the pattern of aqueous soluble muscle protein.