schroederi, Potamotrygon Fernández-Yépez [A.] 1958:8, Figs. 1-2 [Boletin del Museo de Ciencias Naturales. Caracas, Venezuela. 2-3; ref. 896] Río Apure, at mouth of Río Apurito, Estado Apure, Venezuela. Holotype (unique): MHNLS 2504 [ex AFY 51289] (parts only). Type catalog: Lasso et al. 1998:41 [ref. 23639]. See Carvalho 2001:1168 [ref. 26256]. •Valid as Potamotrygon schroederi Fernández-Yépez 1958 -- (Compagno 1999:495 [ref. 25589], Carvalho et al. in Reis et al. 2003:25 [ref. 27061] dated 1957, Carvalho et al. 2011:12 [ref. 31264], Fontenelle et al. 2014:150 [ref. 33180], Weigmann 2016:157 [ref. 34211], Carvalho et al. 2016:581 [ref. 34422], DoNascimiento 2016:527 [ref. 34727], Carvalho 2016:6 [ref. 34730], Carvalho 2016:646 [ref. 34997], DoNascimiento et al. 2017:33 [ref. 35633], Ehemann et al. 2019:[7] [ref. 36861]). Current status: Valid as Potamotrygon schroederi Fernández-Yépez 1958. Potamotrygonidae: Potamotrygoninae. Distribution: South America: Orinoco and Amazon basins: Brazil, Colombia and Venezuela. Habitat: freshwater.