The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

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Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus

nominal species Unio batavus var. longus de Joannis, 1859

de Joannis, 1859, Ann. Soc. Linn. Maine-et-Loire 3: 288, pl. 10, fig. 3.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807; homonym of Unio longus Philippi, 1869)

= Unio crassus

Taxonomic Opinions

+ Unio batavus Maton et Rackett — Germain, 1931
= Unio batavus var. longus Nobis — de Joannis, 1859

Page updated: 08:22:07 Tue 01 Jul 2025