olivaceus, Gobius Castelnau [F. L.] 1861:55 [Mémoire sur les poissons de l'Afrique australe; ref. 767] Cape of Good Hope, South Africa. Holotype (unique): MNHN (not found). Type catalog: Bauchot et al. 1991:57 [ref. 19958]. Objectively invalid; preoccupied by Gobius olivaceus Temminck & Schlegel 1845. •Questionably a synonym of Nematogobius saldanha (Barnard 1927) -- (Maugé 1986:377 [ref. 6218]). •Synonym of Caffrogobius saldanha (Barnard 1927) -- (Miller 1990:927 [ref. 19376], Parenti 2021:110 [ref. 38603], Larson 2022:60 [ref. 39971] with question). 1°Homonym. Current status: Synonym of Caffrogobius saldanha (Barnard 1927). Gobiidae: Gobiinae. Habitat: brackish, marine.