Comparative anatomy of the cheek muscles of Korean cobitid fishes (Ostariophysi: Cypriniformes), with the comments on their phylogenetic relationships |
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| Authors: | Byung-Jik Kim Ik-Soo Kim |
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| Affiliation: | (1) Marine and Environmental Research Institute, Cheju National University, 3288 Hamdeok-ri, Bukjeju-gun, Jeju-si, Jeju-do, 690-968, Korea;(2) Faculty of Biological Sciences, College of Natural Science, Chonbuk National University, 1ga 664-14, Duckjin-dong, Duckjin-gu, Chonju, Chonbuk, 561-756, Korea |
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| Abstract: | Cheek muscles of 16 species of all Korean cobitid species belong to six genera were examined and described in detail, with comments on their phylogenetic relationships made on the basis of characteristics of cheek muscles. Korean cobitids were divided into two groups, the Cobitis and Misgurnus groups, by five characters related to three cheek muscles (adductor mandibulae, preorbitalis, and retractor arcus palatine). The former group, comprising Cobitis, Iksookimia, Kichulchoia, Koreocobitis, and Niwaella, is defined by four apomorphies, and the latter, including Misgurnus, by a single apomorphy. |
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