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Thu 3 September 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 | ... | Unionidae | Unioninae | Unionini | Unionina | Unio tumidus

nominal species Mya depressa Donovan, 1801

= Unio tumidus

Taxonomic Opinions

+ Unio tumidus tumidus (Philipsson, 1788) — Lopes-Lima et al., 2017

+ Unio (s.s.) tumidus Retzius, 1788 — Vinarski & Kantor, 2016

+ Unio tumidus — Prié & Puillandre, 2014

= Unio (s.s.) tumidus depressus (Donovan, 1802) — Falkner et al., 2002

= Unio (s.s.) tumidus depressus (Donovan, 1802) — Falkner et al., 2001

+ — Haas, 1969

+ Unio tumidus tumidus Retzius, 1788 — Haas, 1940

+ Unio (sec. Lymnium) tumidus Retzius, 1788 — Simpson, 1914

+ Unio (sec. Lymnium) tumidus Retzius, 1788 — Simpson, 1900

+ Margaron (Unio) tumidus (Retz.) — Lea, 1870

+ Unio tumidus Retzius — Malzine, 1867

+ Unio tumidus Philippson — Reeve, 1865

+ Unio (Mysca) conus compressa — Mørch, 1863

+ Margaron (Unio) tumidus (Retz.) — Lea, 1852

+ Unio (Batavi) ovalis Gray — Dupuy, 1852

+ Unio tumidus Retz. — Rossmässler, 1844

+ Unio ovalis — Brown, 1844

+ Margarita (Unio) litoralis [sic] Lam. Pfeif. Des Moul. Grat. — Lea, 1838

+ Margarita (Unio) ovalis Flem. Sow. — Lea, 1838

+ Margarita (Unio) litoralis [sic] (Lamarck, 1801) — Lea, 1836

+ Margarita (Unio) ovalis Flem. — Lea, 1836

= Mya ovata var. depressa Donovan — Dillwyn, 1817

+ Mya ovalis — Maton & Rackett, 1807