ryukyuensis, Gymnothorax Hatooka [K.] 2003:2, Figs. 1-2, 4 [Bulletin of the Osaka Museum of Natural History No. 57; ref. 27558] Umino Fisheries Port, Chinen, Okinawa Island, Ryukyu Islands. Holotype: FAKU 51606. Paratypes: FAKU 41167 (1), 51436 (1), 100235 (1); KPM-NI 008732 (1); OMNH-P 11548 [ex SMBL-F 73344] (1), OMNH-P 17950 [ex FAKU 51437] (1). •Valid as Gymnothorax ryukyuensis Hatooka 2003 -- (Smith 2012:27 [ref. 32155]). Current status: Valid as Gymnothorax ryukyuensis Hatooka 2003. Muraenidae: Muraeninae. Distribution: Western North Pacific: Ryukyu Islands. Habitat: marine.