Podocnemis expansa (Schweigger 1812:299)
Syntypes (3, according to the original description): MNHN 7997 (Ceríaco & Bour 2012:19), 7893 (= Emys cayennensis [= Podocnemis unifilis]; Bour 2006a 33; photographed therein), and 8363 (= P. erythrocephala; Bour 2006a:33; photographed therein); MNHN 7997 designated lectotype by Bour (2006a:35; photographed therein).
Tesudo arrau Humboldt 1819:243
Holotype: Not located.
Emys amazonica Spix 1824:1
Syntypes (22): RMNH 3294 (Franzen & Glaw 2007:206; apparently illustrated in the original description, Pl. 1–2; photographed in Hoogmoed et al. 2010:25); and ZSM 2446/0/1-7, 2447/0/1-4, 7/0, 8/0, 9/0, 10/0, 11/0, 12/0, 13/0, 14/0, 2730/0, and 3095/0; ZSM 2446/0/1 designated lectotype by Hoogmoed & Gruber (1983:343); discussed by Hoogmoed et al. (2010:24–25).