unilobatus, Tometes Valenciennes [A.] in Cuvier & Valenciennes 1850:228 [Histoire naturelle des poissons v. 22; ref. 1014] Cayenne, French Guiana. Holotype (unique): MNHN A-8651 (dry). Type catalog: Bertin 1948:27 [ref. 19577]. •Synonym of Myleus pacu (Jardine & Schomburgk 1841) -- (Géry 1972:178 [ref. 1594], Taphorn 1992:278 [ref. 23654]). •Possibly valid as Tometes unilobatus Valenciennes 1850 -- (Jégu & Santos 2002:53 [ref. 26050]). •Synonym of Tometes trilobatus Valenciennes 1850 -- (Keith et al. 2000:14 [ref. 24547], Jégu in Reis et al. 2003:192 [ref. 27061], Andrade et al. 2016:491 [ref. 34140], Ota et al. 2024:431 [ref. 40817]). Current status: Synonym of Tometes trilobatus Valenciennes 1850. Serrasalmidae: Myleinae. Habitat: freshwater.