niomatus, Pomacentrus De Vis [C. W.] 1884:451 [Proceedings of the Linnean Society of New South Wales v. 8 (pt 4); ref. 1089] Probably South Sea islands. Holotype (unique): QM I.111. •Pomacentrus inornatus Jordan & Seale 1906 is an unjustified emendation but not treated as such by Allen 1991:253 [ref. 19344] who treats a Pomacentrus inornatus De Vis 1884 as a synonym of Stegastes fasciolatus and treats niomatus as status uncertain on p. 254 -- (Allen 1991:254 [ref. 19344]). •Synonym of Stegastes fasciolatus (Ogilby 1889) -- (Parenti 2021:82 [ref. 38418]). •Synonym of Plectroglyphidodon fasciolatus (Ogilby 1889). Current status: Synonym of Plectroglyphidodon fasciolatus (Ogilby 1889). Pomacentridae: Microspathodontinae. Habitat: marine.