biafraensis, Xesurus Blache [J.] & Rossignol [M.] 1962:482, Fig. [Bulletin du Muséum National d'Histoire Naturelle (Série 2) v. 33 (no. 5) (for 1961); ref. 7641] Pointe de Prayao, São Tomé Island, Gulf of Guinea, depth 10 meters. Holotype (unique): MNHN 1961-0309. Type catalog: Bauchot & Randall 1996:63 [ref. 22195]. •Valid as Prionurus biafraensis (Blache & Rossignol 1962) -- (Desoutter 1990:964 [ref. 18967], Afonso et al. 1999:79 [ref. 25466], Kuiter & Debelius 2001:138 [ref. 26232] as biafraenis, Randall 2001:161 [ref. 25804], Wirtz et al. 2007:40 [ref. 30263], Rocha in Carpenter & De Angelis 2016:2860 [ref. 34618], Ludt et al. 2019:4007 [ref. 36781], Reiner 2019:270 [ref. 38139] as biafrensis, Fermon et al. 2022:300 [ref. 39448]). Current status: Valid as Prionurus biafraensis (Blache & Rossignol 1962). Acanthuridae. Distribution: Eastern Atlantic: Cape Lopez (Gabon) south to Pointe-Noire (Congo), including São Tomé and Principe. Habitat: marine.