gracilicauda, Gymnapogon Lachner [E. A.] 1953:497, Fig. 84 [Bulletin of the United States National Museum No. 202 (v. 1); ref. 17482] Bikini Atoll, northern Marshall Islands. Holotype: USNM 112378. Paratypes: FMNH 62606 (1); USNM 112379 (1), 112380-81 (1, 1), 142408 (2). Type catalog: Ibarra & Stewart 1987:42 [ref. 12367]. •Valid as Pseudamiops gracilicauda (Lachner 1953) -- (Hayashi in Masuda et al. 1984:150 [ref. 6441], Paxton et al. 1989:556 [ref. 12442], Winterbottom et al. 1989:32 [ref. 13251], Randall et al. 1997:510 [ref. 25919], Myers 1999:134 [ref. 23965], Allen 1999:2607 [ref. 24812], Randall 1999:14 [ref. 25829], Allen 2000:88 [ref. 37268], Nakabo 2000:778 [ref. 25086], Allen in Randall & Lim 2000:614 [ref. 25122], Randall 2001:63 [ref. 25215], Nakabo 2002:778 [ref. 26001], Myers & Donaldson 2003:624 [ref. 27495], Randall et al. 2004:14 [ref. 27624], Randall 2005:212 [ref. 28239], Allen et al. 2006:1106 [ref. 29004], Randall 2007:216 [ref. 30952], Allen & Erdmann 2012:410 [ref. 31980], Gon et al. 2013:98 [ref. 32864], Fricke et al. 2014:77 [ref. 33932], Mabuchi et al. 2014:199 [ref. 33426], Delrieu-Trottin et al. 2015:6 [ref. 33988], Mabuchi et al. 2015:44 [ref. 34429], Kuiter & Kozawa 2019:78 [ref. 36965], Fraser et al. 2022:190 [ref. 39752], Allen & Erdmann 2024:434 [ref. 40796]). Current status: Valid as Pseudamiops gracilicauda (Lachner 1953). Apogonidae: Pseudamiinae. Distribution: Eastern Indian Ocean, western Pacific: ?Chagos Archipelago; Christmas Island and Cocos-Keeling Islands (Australia) east to Marshall Islands and Rapa (French Polynesia), north to Ryukyu Islands (Japan), south to off northern Western Australia, northern Queensland (Australia) and New Caledonia. Habitat: marine.