ajereba, Raja Walbaum [J. J.] (ex Markgraf von Liebstadt) 1792:535 [Petri Artedi sueci genera piscium Part 3; ref. 4572] Municipality of Colares, Marajó Bay, State of Pará, Brazil, 00°55'34"S, 48°17'25"W [Brazil]. No types preserved. Based on the 'Aiereba' of Markgraf von Liebstadt 1648:175, fig. [ref. 30347]. See also Trygon aiereba Müller & Henle 1841. Castex 1964:16 [ref. 20924] considered it the same. The spelling ajereba is correct, but prevailing usage favors continuing the spelling as aiereba. •Valid as Paratrygon aiereba (Müller & Henle 1841) -- (Ortega & Vari 1986:6 [ref. 9708] as Paratrygon aieraba, Lasso et al. 1997:43 [ref. 23139], Compagno 1999:495 [ref. 25589], Carvalho et al. in Reis et al. 2003:23 [ref. 27061], Frederico et al. 2012:72 [ref. 31909] as aiereba, Loboda et al. 2021:40 [ref. 38382]). •Valid as Paratrygon aiereba (Walbaum 1792) -- (Castex 1964:16 [ref. 20924], Carvalho-Filho 2023:321 [ref. 40480]). Current status: Valid as Paratrygon aiereba (Walbaum 1792). Potamotrygonidae: Potamotrygoninae. Distribution: South America: Amazon River basin, Bolivia, Ecuador, Peru, Colombia and Brazil. IUCN (2018): Data Deficient. Habitat: freshwater.