monochrus, Alticus Bleeker [P.] 1869:234 [Verslagen en Mededeelingen der Koninklijke Akademie van Wetenschappen. Afdeeling Natuurkunde (Ser. 2) v. 3; ref. 426] Samberano River, Madagascar. Holotype (unique): RMNH 4474. •Valid as Alticus monochrus Bleeker 1869 -- (Bath 1986:355 [ref. 6217], Poll & Gosse 1995:119 [ref. 24781], Heemstra et al. 2004:3327 [ref. 27945], Fricke et al. 2009:94 [ref. 30213], Patzner et al. 2009:449 [ref. 30396], Fricke et al. 2018:306 [ref. 35805], Arndt & Fricke 2019:11 [ref. 36883], Williams & Springer 2022:332 [ref. 39951], Fricke et al. 2024:66 [ref. 41255]). Current status: Valid as Alticus monochrus Bleeker 1869. Blenniidae: Salariinae. Distribution: Southwestern Indian Ocean: Seychelles, Comoros, Madagascar, Mascarenes (La Réunion, Mauritius and Rodrigues). Habitat: brackish, marine.