monodactylus, Chaetodon Carmichael [D.] 1819:500, Pl. 24 [The Transactions of the Linnean Society of London v. 12 (pt 2) (art. 29); ref. 17972] Tristan da Cunha, South Atlantic. No types known. •Valid as Acantholatris monodactylus (Carmichael 1819) -- (Andrew et al. 1995:22 [ref. 38009]). •Valid as Nemadactylus monodactylus (Carmichael 1819) -- (Burridge 1999:414 [ref. 23946], Kimura et al. 2018:68 [ref. 36401], Ludt et al. 2019:134 [ref. 36635], Heemstra 2022:86 [ref. 39885]). Current status: Valid as Nemadactylus monodactylus (Carmichael 1819). Latridae. Distribution: Southern-central Atlantic, southwestern Indian Ocean: Tristan da Cunha; Gough Island; Vema Seamount; Saint-Paul and Amsterdam Islands; Austral Seamount; Walters Shoals. Habitat: marine.