tajasica, Gobius Lichtenstein [M. H. C.] 1822:273 [Abhandlungen der Königlichen Akademie der Wissenschaften zu Berlin 1820-1821; ref. 17529] Brazil. Syntypes: ZMB 2036 (1). Original not seen. As taiasica in Valenciennes 1837:122 [ref. 1006]. Neotype [ANSP 84175] selected by Watson 1996:13 [ref. 22211] but a syntype or holotype may exist at ZMB. •Valid as Awaous tajasica (Lichtenstein 1822) -- (Lee et al. 1980:786 [ref. 22416], Robins & Ray 1986:242 [ref. 23100], Boschung 1992:162 [ref. 23239], Bussing 1987:233 [ref. 22927], Espinosa Pérez et al. 1993:74 [ref. 22290], Watson 1996:13 [ref. 22211], Torelli et al. 1997:70 [ref. 24612], Bussing 1998:397 [ref. 24179], Ruiz-Campos et al. 1999:131 [ref. 24154], Castro-Aguirre et al. 1999:438 [ref. 24550], Kullander in Reis et al. 2003:658 [ref. 27061], Moura et al. in Menezes et al. 2003:98 [ref. 27192], Miller 2006:395 [ref. 28615], Scharpf 2009:13 [ref. 30400], Van Tassell 2011:142 [ref. 31732], Di Dario et al. 2013:263 [ref. 37503], Catelani et al. 2014:932 [ref. 37496], Melo et al. 2016:377 [ref. 35317], Costa et al. 2017:46 [ref. 35684], Ribeiro et al. 2019:6 [ref. 36717], Al-Jufaili et al. 2021:[3] [ref. 38743], McMahan et al. 2021:[5] [ref. 38383], Koerber et al. 2022:66 [ref. 39235], Carvalho-Filho 2023:235 [ref. 40480]). Current status: Valid as Awaous tajasica (Lichtenstein 1822). Gobiidae: Gobionellinae. Distribution: Southwestern Atlantic: Piauí south to Santa Catarina (Brazil) endemic. Habitat: freshwater, brackish, marine.