heraldoi, Pimelodus Azpelicueta [M. de las M.] 2001:194, Figs. 1-2 [Ichthyological Exploration of Freshwaters v. 12 (no. 3); ref. 25639] Rio Mogi-Guaçu in Emas, Município de Pirassununga, Estado de São Paulo, Brazil. Holotype: MZUSP 22713. Paratypes: MLP 9186 (1, c&s); MZUSP 21637 (3), 22695-96 (7, 18), 22712 (29), 38915 (6). Type catalog: Ferraris 2007:338 [ref. 29155]. •Valid as Pimelodus heraldoi Azpelicueta 2001 -- (Lundberg & Littmann in Reis et al. 2003:439 [ref. 27061], Ribeiro & Lucena 2006:326 [ref. 28962], Ribeiro & Lucena 2007:77 [ref. 29174], Ferraris 2007:338 [ref. 29155], Azpelicueta et al. 2008:155 [ref. 29736]). •Synonym of Pimelodus microstoma Steindachner 1877 -- (Ribeiro & Lucena 2010:277 [ref. 30865]). Current status: Synonym of Pimelodus microstoma Steindachner 1877. Pimelodidae. Distribution: Upper Paraná River basin, Brazil [if valid]. Habitat: freshwater.