caeruleus, Pomacentrus Quoy [J. R. C.] & Gaimard [J. P.] 1825:397, Pl. 64 (fig. 2) [Voyage autour du monde; ref. 3574] Mauritius, Mascarenes, southwestern Indian Ocean. Syntypes: MNHN 0000-8250 (1), 0000-8504 (3). Type catalog: Bauchot et al. 1978:22 [ref. 20862]. •Valid as Pomacentrus caeruleus Quoy & Gaimard 1825 -- (Allen 1986:681 [ref. 5631], Allen 1991:249 [ref. 19344], Randall 1995:266 [ref. 22896], Fricke 1999:382 [ref. 24106], Allen 2002:52 [ref. 26516], Allen & Wright 2003:136 [ref. 27247], Manilo & Bogorodsky 2003:S113 [ref. 27377], Heemstra et al. 2004:3324 [ref. 27945], Fricke et al. 2009:81 [ref. 30213], Fricke et al. 2013:265 [ref. 32706], Liu et al. 2013:8 [ref. 32931], Fricke et al. 2018:273 [ref. 35805], Arndt & Fricke 2019:27 [ref. 36883], Dalleau-Coudert et al. 2019:136 [ref. 40104], Zajonz et al. 2019:87 [ref. 36871], Habib & Islam 2020:Supplementary table p. 23 [ref. 38321] misidentified, Parenti 2021:74 [ref. 38418], Allen 2022:156 [ref. 39911], Fricke et al. 2024:84 [ref. 41255]). Current status: Valid as Pomacentrus caeruleus Quoy & Gaimard 1825. Pomacentridae: Pomacentrinae. Distribution: Western Indian Ocean: KwaZule-Natal (South Africa), East Africa, Socotra (Yemen), Seychelles, Comoros, Madagascar and Mascarenes (La Réunion, Mauritius, Rodrigues) east to Maldives. Habitat: marine.