thayeri, Disceus Garman [S.] 1913:426, Pls. 34, 54 (2), 57 (2), 70 (3-4) [Memoirs of the Museum of Comparative Zoology v. 36; ref. 1545] Obidos, Manaos [Manaus], and Pará, Brazil. Syntypes: MCZ 297-S (1) Manaus, 563-S (1) Rio Pará, 606-S (1) Obidos. Type catalog: Hartel & Dingerkus 1997:xliii [ref. 23119]. •Synonym of Elipesurus spinicauda Jardine & Schomburgk 1843 -- (Bailey 1969:133 [ref. 14234]). •Synonym of Paratrygon aiereba (Müller & Henle 1841) -- (Rosa 1992:425 [ref. 30634], Hartel & Dingerkus 1997:xxvi [ref. 23119], Carvalho et al. in Reis et al. 2003:23 [ref. 27061], Loboda et al. 2021:40 [ref. 38382]). •Mention -- (Castex 1964:33 [ref. 20924]). •Synonym of Paratrygon aiereba (Walbaum 1792). Current status: Synonym of Paratrygon aiereba (Walbaum 1792). Potamotrygonidae: Potamotrygoninae. Habitat: freshwater.