sagmacephalus, Gymnothorax Böhlke [E. B.] 1997:100, Figs. 12-14 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 147; ref. 23177] Yokohama Aquarium, Tokyo Bay, Japan. Holotype (unique): USNM 149777. Type catalog: Böhlke & Smith 2002:146 [ref. 26380]. •Valid as Gymnothorax sagmacephalus Böhlke 1997 -- (Böhlke & Smith 2002:146 [ref. 26380], Loh et al. 2011:51 [ref. 31690], Smith 2012:27 [ref. 32155], Loh et al. 2015:39 [ref. 34118], Ho et al. 2015:161 [ref. 34130], Mohapatra et al. 2016:596 [ref. 34667], Mohapatra et al. 2017:285 [ref. 35504]). Current status: Valid as Gymnothorax sagmacephalus Böhlke 1997. Muraenidae: Muraeninae. Distribution: Western North Pacific: Japan and Taiwan. Habitat: marine.