semicirculatus, Holacanthus Cuvier [G.] in Cuvier & Valenciennes 1831:191, Pl. 183 [Histoire naturelle des poissons v. 7; ref. 4881] Timor, Bourou, Waigeo, Indonesia, and Port Praslin, New Ireland Island, Bismarck Archipelago. Syntypes: MNHN A-0083 (1) [Bauchot's holotype] Bourou, A-0150 (1) Timor, A-0606 (1) New Ireland; ZMB 1321 (1). Type catalog: Bauchot 1963:145 [ref. 20718] wrongly with a holotype and paratypes. See Holacanthus semicircularis De Vis 1884, an incorrect subsequent spelling. •Valid as Pomacanthodes semicirculatus (Cuvier 1831) -- (Khan 1998:231 [ref. 24980]). •Valid as Pomacanthus semicirculatus (Cuvier 1831) -- (Allen 1980:251 [ref. 22764], Dor 1984:171 [ref. 29757] on Red Sea specimens -- but see Randall 1988:2 [ref. 12862], Araga in Masuda et al. 1984:187 [ref. 6441], Smith & Heemstra 1986:626 [ref. 5714], Allen & Swainston 1988:100 [ref. 25477], Randall et al. 1990:245 [ref. 15987], Kuiter 1993:229 [ref. 23929], Francis 1993:163 [ref. 25479], Goren & Dor 1994:48 [ref. 25356], Randall 1995:256 [ref. 22896], Allen 1997:156 [ref. 23977], Chen et al. 1997:129 [ref. 26476], Kuiter 1997:226 [ref. 25488], Randall et al. 1997:245 [ref. 25919], Myers 1999:173 [ref. 23965], Fricke 1999:349 [ref. 24106], Johnson 1999:740 [ref. 25471], Pyle in Randall & Lim 2000:624 [ref. 25122], Nakabo 2000:899 [ref. 25182], Allen 2000:90 [ref. 37268], Laboute & Grandperrin 2000:310 [ref. 25191], Sadovy & Cornish 2000:177 [ref. 25480], Allen 2000:107 [ref. 25868], Hutchins 2001:265 [ref. 25841], Hutchins 2001:36 [ref. 25847], Pyle 2001:3285 [ref. 26118], Nakabo 2002:899 [ref. 26193], Allen & Adrim 2003:43 [ref. 26830], Manilo & Bogorodsky 2003:S112 [ref. 27377], Randall et al. 2004:19 [ref. 27624], Heemstra et al. 2004:3322 [ref. 27945], Heemstra & Heemstra 2004:283 [ref. 28072], Randall 2005:342 [ref. 28239], Mundy 2005:407 [ref. 28379], Allen et al. 2006:1308 [ref. 29090], Fricke et al. 2009:75 [ref. 30213], Satapoomin 2009:195 [ref. 30463], Golani & Bogorodsky 2010:75 [ref. 35264], Motomura et al. 2010:141 [ref. 31256], Allen & Erdmann 2012:559 [ref. 31980], Fricke et al. 2013:263 [ref. 32706], Fricke et al. 2014:107 [ref. 33932], Koeda et al. 2016:60 [ref. 35333], Koeda et al. 2016:9 [ref. 35354], Fricke et al. 2018:243 [ref. 35805], Jawad et al. 2018:118 [ref. 36262], Arndt & Fricke 2019:25 [ref. 36883], Fricke et al. 2019:198 [ref. 36673], Hoschke et al. 2019:157 [ref. 36626], Zajonz et al. 2019:84 [ref. 36871], Habib & Islam 2020:Supplementary table p. 23 [ref. 38321], Mohanty et al. 2020:1438 [ref. 37820], Gloerfelt-Tarp & Kailola 2022:233 [ref. 41223], Heemstra 2022:441 [ref. 39850], Allen & Erdmann 2024:593 [ref. 40796], Fricke et al. 2024:83 [ref. 41255]). Current status: Valid as Pomacanthus semicirculatus (Cuvier 1831). Pomacanthidae. Distribution: Indo-West Pacific: Eastern Cape and KwaZulu-Natal (South Africa), East Africa, Socotra (Yemen), Seychelles, Madagascar and Mascarenes (La Réunion, Mauritius, Rodrigues) east to Samoa and Tonga, north to southern Japan and Ogasawara Islands (Japan), south to Rottnest Island (Western Australia), New South Wales (Australia) and New Caledonia. Habitat: marine.