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Data last updated
Thu 18 Dec 2025
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Bivalvia
| ... | Unionoidea
| Unionidae
| Unioninae
| Unionini
| Unio delphinus
nominal species Unio requienii var. arcuata Drouët, 1857
Unio requienii var. arcuata Drouët, 1857 = Unio delphinus
Drouët, 1857. Étud. Naïades. France, Unio: pl. 7, fig. 3.
de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 291, pl. 11, fig. 2.
(misidentified reference to Unio arcuata Jacquemin, 1835)
= Unio delphinus Taxonomic Opinions+ Unio requieni Michaud — Germain, 1931 + Unio (Cyrtusiana) souzanus [sic] Castro in Locard, 1889 — Germain, 1904 + Unio (groupe de l’U. cyrtus) sousanus Castro in Locard, 1889 — Locard, 1899 + Unio (Cyrtusiana) sousanus Castro, Nov. sp. — Locard, 1889 = Unio requienii var. arcuatus Nobis — de Joannis, 1859
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