• Korean Journal of Ichthyology
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• v.36 no.3
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• pp.263-272
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• 2024

The genus Rhinogobius fishes, collected from a stream in the Geumodo Island of Yeosusi, Jeollanam-do, Korea, were identified as Rhinogobius nagoyae Jordan and Seale, 1906. The specimen from Geumodo Island exhibited the following morphological characteristics, which were consistent with the original description of R. nagoyae and other literatures: I, 7~8 second dorsal fin rays; I, 7~8 anal fin rays; 18~19 pectoral fin rays; 31~36 longitudinal scales; 8~9 transverse scales; first dorsal fin elongate in male, its distal tip reaching to base of second or third branched ray of second dorsal fin in males when adpressed; pectoral fin base with 1~3 crescent-like reddish brown line; abdomen blue when mature; when alive or freshly-collected, cheek with vermiculate reddish brown line; caudal fin 6~7 distinct rows of dark dots; a bow-shaped dark brown blotches at caudal-fin base. Detailed specimen-based descriptions were reported here.