Bivalvia | ... | Unionidae | Unioninae | Unionini | Unionina | Unio crassus
Drouët, 1879. J. de Conch. 27: 142.
+ Unio crassus Philipsson in Retzius, 1788 — Lopes-Lima et al., 2024: suppl. append. 2, p. 4.
+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1969: 48.
+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1940: 130.
+ Unio mancus var. amnicus Ziegler — Germain, 1931: 726.
= Unio (Groupe des Mancusiana) subtilis Drouet — Caziot, 1907: 276.
= Unio (Groupe de l’U. mancus) subtilis Drouet — Locard, 1893: 158.
= Unio subtilis Drouet, 1879 — Westerlund, 1890: 86.
= Unio (Mancusiana) subtilis Drouët — Locard, 1889: 129.
= Unio subtilis Drouët — Drouët, 1889: 62, sp. 15.
= Unio subtilis Drouët, 1879 — Kobelt, 1886: 42, pl. 53, fig. 287.
= Unio (Groupe de l’U. Brevierei) subtilis Drouët — Locard, 1882: 286.
= Unio subtilis Drouët — Drouët, 1879: 142, sp. 11.