한국 제주도 동부 해역에서 채집한 농어목(Perciformes), Symphysanodontidae, Symphysanodon typus 치어의 첫 보고
First Record of Symphysanodon typus (Symphysanodontidae, Perciformes) Collected from the Eastern Sea of Jeju-do Island, Korea
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A single juvenile specimen of Symphysanodon typus Bleeker, 1878 (total length, 13.4 mm), belonging to the family Symphysanodontidae, was collected for the first time from the waters off the eastern coast of Jeju-do Island in February 2024. The specimen was identified as S. typus using morphological and molecular analyses. Analysis of its mtDNA COI sequences revealed that the specimen clustered together with S. typus, showing a genetic distance of 0%. The juvenile S. typus had long spines with serrated edges on the dorsal side of its head and the corner of the operculum. The anus was located in the middle of the body. Additionally dorsal melanophores were found along the dorsal side of the body, caudal peduncle, and abdominal cavity. Compared to the species, S. typus can be distinguished from S. katayamai by the absence of melanophores in the abdominal cavity and on the operculum and by the length of the spine on the operculum. We propose new Korean names “Da-hong-ge-reu-chi-gwa” for the family Symphysanodontidae, “Da-hong-ge-reu-chi-sog” for the genus Symphysanodon, and “Da-hong-ge-reu-chi” for S. typus.
Abstract
A single juvenile specimen of Symphysanodon typus Bleeker, 1878 (total length, 13.4 mm), belonging to the family Symphysanodontidae, was collected for the first time from the waters off the eastern coast of Jeju-do Island in February 2024. The specimen was identified as S. typus using morphological and molecular analyses. Analysis of its mtDNA COI sequences revealed that the specimen clustered together with S. typus, showing a genetic distance of 0%. The juvenile S. typus had long spines with serrated edges on the dorsal side of its head and the corner of the operculum. The anus was located in the middle of the body. Additionally dorsal melanophores were found along the dorsal side of the body, caudal peduncle, and abdominal cavity. Compared to the species, S. typus can be distinguished from S. katayamai by the absence of melanophores in the abdominal cavity and on the operculum and by the length of the spine on the operculum. We propose new Korean names “Da-hong-ge-reu-chi-gwa” for the family Symphysanodontidae, “Da-hong-ge-reu-chi-sog” for the genus Symphysanodon, and “Da-hong-ge-reu-chi” for S. typus.
참고문헌 (20)
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