simplex, Gobius Sauvage [H.-E.] 1880:48 [9] [Bulletin de la Société philomathique de Paris (7th Série) v. 4; ref. 3887] Bagamoyo, eastern Tanzania. Holotype (unique): MNHN A-1349. Type catalog: Bauchot et al. 1991:39 [ref. 19958]. On p. 9 of separate. •Valid as Acentrogobius simplex (Sauvage 1880) -- (Maugé 1986:358 [ref. 6218], Larson & Wright 2003:130 [ref. 27481], Jawad et al. 2016:1 [ref. 34964], Parenti 2021:81 [ref. 38603], Larson 2022:34 [ref. 39965]). Current status: Valid as Acentrogobius simplex (Sauvage 1880). Gobiidae: Gobiinae. Distribution: Western Indian Ocean: East Africa (Mozambique, Tanzania). Habitat: brackish, marine.