henlei, Trygon (Taenura) Castelnau [F. L.] 1855:102, Pl. 48 (fig. 3) [Animaux nouveaux or rares v. 2; ref. 766] Rio Tocantins, Brazil. Holotype (unique): MNHN 0000-2353 (poor condition). Type catalog: Bertin 1939:89 [ref. 20739], Séret & McEachran 1987:21 [ref. 9312]. Name listed as Taenura henlei on figure caption. •Synonym of Potamotrygon motoro (Müller & Henle 1841) -- (Castex 1964:20 [ref. 20924]). •Valid as Potamotrygon henlei (Castelnau 1855) -- (Compagno 1999:495 [ref. 25589], Carvalho et al. in Reis et al. 2003:24 [ref. 27061], Rosa et al. 2008:8 [ref. 29564], Carvalho et al. 2011:26 [ref. 31264], Fontenelle et al. 2014:341 [ref. 33180], Weigmann 2016:155 [ref. 34211], Carvalho 2016:560 [ref. 34666], Carvalho 2016:6 [ref. 34730], Carvalho 2016:633 [ref. 34997]). Current status: Valid as Potamotrygon henlei (Castelnau 1855). Potamotrygonidae: Potamotrygoninae. Distribution: Tocantins River basin, Brazil. Habitat: freshwater.