Rooseveltiella Eigenmann [C. H.] 1915:240 Fem. Pygocentrus nattereri Kner 1858. Type by original designation. Objectively invalid; preoccupied by Rooseveltiella Fox in Siphonaptera [not investigated]; replaced by Taddyella Ihering 1928. •In the synonymy of Serrasalmus Lacepède 1803, subgenus Taddyella Ihering 1928 -- (Géry 1972:226 [ref. 1594], Géry 1976:52 [ref. 14199]). •In the synonymy of Pygocentrus Müller & Troschel 1844 -- (Taphorn 1992:308 [ref. 23654], Fink 1993:668 [ref. 20937], Jégu in Reis et al. 2003:189 [ref. 27061]). 1°Homonym. Current status: Synonym of Pygocentrus Müller & Troschel 1844. Serrasalmidae: Serrasalminae.