leucogaster, Apistes Richardson [J.] 1848:5, Pl. 5 (figs. 1-2) [The zoology of the voyage of H. M. S. Samarang; ref. 3744] Sea of China. Holotype (unique): BMNH 1979.11.1.1. •Valid as Tetraroge leucogaster (Richardson 1848) -- (Allen & Swainston 1988:50 [ref. 25477]). •Valid as Richardsonichthys leucogaster (Richardson 1848) -- (Paxton et al. 1989:447 [ref. 12442], Randall et al. 1990:80 [ref. 15987], Allen 1997:78 [ref. 23977], Randall et al. 1997:80 [ref. 25919], Poss 1999:2333 [ref. 24796], Poss in Randall & Lim 2000:605 [ref. 25122], Mandrytsa 2001:278 [ref. 25636], Hutchins 2001:27 [ref. 25847], Allen & Adrim 2003:30 [ref. 26830], Adrim et al. 2004:119 [ref. 27715], Randall 2005:129 [ref. 28239], Allen et al. 2006:902 [ref. 29078], Prokofiev 2008:304 [ref. 29592], Motomura 2009:70 [ref. 30446], Fricke et al. 2011:380 [ref. 31242], Larson et al. 2013:84 [ref. 32988], Kwik & Lim 2020:18 [ref. 38869], Gloerfelt-Tarp & Kailola 2022:123 [ref. 41223], Poss 2022:555 [ref. 39726], Moazzam & Osmany 2023:311 [ref. 40698], Allen & Erdmann 2024:266 [ref. 40796]). Current status: Valid as Richardsonichthys leucogaster (Richardson 1848). Synanceiidae: Tetraroginae. Distribution: Indo-West Pacific: KwaZulu-Natal (South Africa), East Africa and Seychelles east to Philippines and West Papua (Indonesia), north to southern China, south to Western Australia, Queensland (Australia) and New Caledonia. IUCN (2018): Least Concern. Habitat: marine.