matoides, Acanthurus Valenciennes [A.] in Cuvier & Valenciennes 1835:204 [Histoire naturelle des poissons v. 10; ref. 1004] Kosrae, Caroline Islands, western Pacific. Holotype (unique): MNHN A-0597. Type catalog: Bauchot & Randall 1996:58 [ref. 22195]. •Synonym of Acanthurus fuliginosus Lesson 1831 -- (Khan 1998:230 [ref. 24980]). •Valid as Acanthurus matoides Valenciennes 1835 -- (Krishnan & Mishra 1994:297 [ref. 24014], Chen et al. 1997:153 [ref. 26476]). •Synonym of Acanthurus xanthopterus Valenciennes 1835 -- (Randall 2001:3675 [ref. 26301], Kottelat 2013:443 [ref. 32989]). •Synonym of Acanthurus nigrofuscus (Forsskål 1775) -- (Randall 1956:190 [ref. 12221], Sadovy & Cornish 2000:257 [ref. 25480], Golani & Fricke 2018:166 [ref. 36273]). Current status: Synonym of Acanthurus nigrofuscus (Forsskål 1775). Acanthuridae. Habitat: marine.