Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Psoronaias crocodilorum

Reeve, 1864. Conch. Icon. 16: pl. 10, sp. 39.
Type(s): HOLOTYPE (MONOTYPY) BMNH_1965209, Chiapas, Mexico.
+ Psoronaias crocodilorum (Morelet, 1849) — Cummings et al., 2025: 315, pl. 63 bottom right.
= Psoronaias semigranosa corium (Reeve, 1864) — Haas, 1969: 324.
+ Psoronaias semigranosus (von dem Busch, 1845) — Goodrich & van der Schalie, 1937: 43.
+ Psoronaias semigranosus v. d. Busch — Haas, 1930: 319.
= Psoronaias semigranosus-corium (Reeve, 1864) — Frierson, 1927: 63, sp. 270b.
= Unio (sec. Elliptio) corium Reeve, 1864 — Simpson, 1914: 593.
= Unio corium Sowb. — Pilsbry, 1910: 532.
= Unio (sec. Elliptio) corium Reeve, 1864 — Simpson, 1900: 702.
= Unio (Psoronaias) corium Reeve, 1864 — Martens, 1900: 495, pl. 31, figs. 4-4b.
= Unio (Psoronaias) corium Reeve, 1864 — Fischer & Crosse, 1894: 570.
+ Margaron (Unio) semigranosus (Phil.) — Lea, 1870: 34.
= Unio corium Reeve, 1864 — Reeve, 1864: pl. 10, sp. 39.