Bivalvia | ... | Unionidae | Unioninae | Unionini | Unionina | Unio elongatulus
Drouët, 1895. J. de Conch. 43: 30, sp. 106.
+ Unio elongatulus C. Pfeiffer, 1825 — Marrone et al., 2019: 354.
+ Unio elongatulus glaucinus Porro, 1838 — Haas, 1969: 42.
+ Unio elongatulus glaucinus Porro, 1838 — Haas, 1940: 127.
= Unio directus Drouët, 1895 — Kobelt, 1896: 99, pl. 208, fig. 1311.