gracilicauda, Gymnothorax Jenkins [O. P.] 1903:426, Fig. 6 [Bulletin of the U. S. Fish Commission v. 22 (1902); ref. 2341] Reef in front of Honolulu, Oahu Island, Hawaiian Islands. Holotype (unique): USNM 50679. Type catalog: Smith 1994:18 [ref. 21917], Böhlke & Smith 2002:113 [ref. 26380]. •Valid as Gymnothorax gracilicauda Jenkins 1903 -- (Paxton et al. 1989:129 [ref. 12442], Randall et al. 1990:38 [ref. 15987], Allen 1997:54 [ref. 23977] as gracilicaudus, Randall et al. 1997:38 [ref. 25919], Myers 1999:48 [ref. 23965], Böhlke et al. 1999:1656 [ref. 24692], Randall 1999:6 [ref. 25829], Böhlke & Randall 2000:239 [ref. 24493], Böhlke & McCosker 2001:73 [ref. 25226], Randall & Earle 2000:6 [ref. 25806], Hutchins 2001:16 [ref. 25847], Böhlke & Smith 2002:113 [ref. 26380], Myers & Donaldson 2003:611 [ref. 27495] as gracilicaudus, Kimura et al. in Kimura & Matsuura 2003:11 [ref. 27510] as gracilicaudus, Randall 2005:42 [ref. 28239], Mundy 2005:119 [ref. 28379], Fricke & Kulbicki 2006:317 [ref. 28867], Allen et al. 2006:251 [ref. 29005], Randall 2007:85 [ref. 30952], Shao et al. 2008:238 [ref. 29952], Prokofiev 2010:585 [ref. 31007] as gracilicaudus, Fricke et al. 2011:350 [ref. 31242], Smith 2012:16 [ref. 32155], Fricke et al. 2014:18 [ref. 33932], Delrieu-Trottin et al. 2015:4 [ref. 33988], Ho et al. 2015:156 [ref. 34130]). Current status: Valid as Gymnothorax gracilicauda Jenkins 1903. Muraenidae: Muraeninae. Distribution: Western and central Pacific: Caroline Islands and Papua New Guinea east to Hawaiian Islands and Pitcairn Group, south to Queensland (Australia) and Loyalty Islands (New Caledonia); possibly Cocos Island (eastern Pacific). Habitat: marine.