platycephalus, Hemiodon Kner [R.] (ex Natterer) 1853:89 [25], Pl. 1 (fig. 6), Pl. 6 (fig. 2a-b) [Denkschriften der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Classe. v. 6; ref. 2627] Rio Cuiabá, Brazil. Holotype (unique): lost. Type catalog: Ferraris 2007:288 [ref. 29155]. Name taken from Natterer manuscript name: Loricaria ? platycephala. On p. 25 of separate. Type lost (Isbrücker 1980:122 [ref. 2303]). •Valid as Pseudohemiodon platycephalus (Kner 1853) -- (Isbrücker 1980:122 [ref. 2303], Burgess 1989:444 [ref. 12860], Britski et al. 1999:131 [ref. 24147], Isbrücker 2001:28, 32 [ref. 25653], Isbrücker 2002:28 [ref. 27178], Ferraris in Reis et al. 2003:340 [ref. 27061], López et al. 2003:47 [ref. 27366], Ferraris 2007:288 [ref. 29155], Provenzano et al. 2022:89 [ref. 39207]). Current status: Valid as Pseudohemiodon platycephalus (Kner 1853). Loricariidae: Loricariinae. Distribution: South America: Paraguay River basin, Brazil. Habitat: freshwater.