• Korean Journal of Fisheries and Aquatic Sciences
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• v.29 no.2
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• pp.208-229
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• 1996

Comprative osteology of the chum salmon Oncorhynchus keta, masu salmon O. masou and rainbow trout O. mykiss in Korea was studied. As a result, it was found that there were some differences in the structural features of the cranium and visceral skeleton among the species. Interspecific differencies in glossohyal, supraethmoid, parasphenoid and vomer were distinctive for the species. Chum salmon could be distinguished easily by some characters on form of glossohyal which is thin, long and sharp in shape. It has triangle shape supraethmoid while other two species have oval shape one. The shape of parasphenoid, preopercle, hyomandibular and the number of epurals were evaluated as new taxonomic criteria for the salmons.