nana, Plesiotrygon Carvalho [M. R. de] & Ragno [M. P.] 2011:105, Figs. 1-15 [Papéis Avulsos de Zoologia, Museu de Zoologia da Universidade de São Paulo v. 51 (no. 7); ref. 31309] Río Pachitea, tributary of Río Ucayali, up-river from town of Puerto Inca, Puerto Inca Province, Huánuco Department, Peru. Holotype: MUSM 20328. Paratypes: MUSM 40243 (1); MZUSP 108777 (1). Plus one non-type specimen. Type catalog: Lima et al. 2023:327 [ref. 40221]. •Valid as Plesiotrygon nana Carvalho & Ragno 2011 -- (Lasso et al. 2011:174 [ref. 31491], Weigmann 2016:154 [ref. 34211], Carvalho 2016:626 [ref. 34997], DoNascimiento et al. 2017:33 [ref. 35633], Meza-Vargas et al. 2021:14 [ref. 39298]). Current status: Valid as Plesiotrygon nana Carvalho & Ragno 2011. Potamotrygonidae: Potamotrygoninae. Distribution: South America: Amazonas basin (Peru, Colombia and Brazil). Habitat: freshwater.