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Thu 17 July 2025

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!

Bivalvia | ... | Unioninae | Unionini | Unio tumidus

nominal species Unio alpecanus Locard, 1882

= Unio tumidus

Taxonomic Opinions

+ Unio tumidus tumidus Retzius, 1788 — Haas, 1969

+ Unio tumidus tumidus Retzius, 1788 — Haas, 1940

+ Unio tumidus Philippson — Germain, 1931

+ — Simpson, 1914

+ Unio tumidus Philippsson — Germain, 1908

+ Unio tumidus Philippsson — Germain, 1908

= Unio (Groupe de l’U. tumidus) alpecanus Bourguignat — Locard, 1893

+ — Westerlund, 1890

= Unio (Alpecanusiana) alpecanus Bourguignat in Locard — Locard, 1889

= Unio (Crassiana) alpecanus Bourguignat — Servain, 1882

= Unio (Groupe de l’U. crassus) alpecanus Bourguignat, 1881, Mss. — Locard, 1882