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9 August

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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 search fields. Either way, you win!

Taxa known only as fossils are highlighted in gray. Those without representatives in fresh waters are highlighted in gold.



Bivalvia | Unionoida | Unionidae | Unio | Unio crassus

NOTICE! This version of the MUSSELpdb online is no longer supported or up-to-date. It will be removed from this web site in the summer of 2019.

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Unio batvus var. ovatus Charpentier, 1837: taxonomic history

Studer, 1820, Naturw. Anz. Schweiz. Ges. Ges. Naturwiss.: 94 [nomen nudum].
‘Studer’ Charpentier, 1837, Cat. Moll. Suisse: 24, pl. 2, figs. 20a-b.

Taxonomic History
+Unio crassus cytherea Küster, 1833. — Haas (1969: 45).
+Unio crassus cytherea Küster, 1833. — Haas (1940: 129).
+Unio crassus var. piscinalis Ziegler. — Germain (1931: 724).
=Unio consentaneus ovatus Stud. — Kobelt & Haas (1911: 20).
=Unio (Groupe de l’U. fusculus) ovatus Servain. — Locard (1893: 159).
?Unio ovatus Studer ap. Charp. — Westerlund (1890: 181).
=Unio (Fusculusiana) ovatus Servain. — Locard (1889: 133).
=Unio ovatus (Studer) Charpentier, 1837. — Servain (1885: 332).
+Margaron (Unio) tumidus (Retz.). — Lea (1870: 58).
+Unio (Lymnium) batavus. — Drouët (1857: 228).
=Unio (Lymnium) batavus var. C ovatus Charp. — Moquin-Tandon (1855: 571).
+Margaron (Unio) tumidus (Retz.). — Lea (1852: 36).
=Unio batavus var. ovatus (Stud.). — Charpentier (1837: 24).

+ Unio crassus

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