Platystoma Agassiz [L.] in Spix & Agassiz 1829:10, 23 Neut. Silurus lima Bloch & Schneider 1801. Type by subsequent designation. Type designated by Jordan 1917:131 [ref. 2407]. Objectively invalid; preoccupied by Platystoma Meigen 1803 in Diptera; Abron Gistel 1848 is a replacement (through Platystoma Valenciennes). •In the synonymy of Sorubim Cuvier 1829 -- (see Kottelat 1988:80 [ref. 13380], Lundberg & Littmann in Reis et al. 2003:442 [ref. 27061], Littmann 2007:2 [ref. 29028], Ferraris 2007:342 [ref. 29155], Grant 2021:127 [ref. 38702]). 1°Homonym. Current status: Synonym of Sorubim Cuvier 1829. Pimelodidae: Sorubiminae.