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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 | ... | Unionoidea | Unionidae | Unioninae | Unionini | Unio nanus

nominal species Unio decurvatus Rossmässler, 1835

= Unio nanus

Taxonomic Opinions

+ Unio nanus Lamarck, 1819 — Lopes-Lima et al., 2024

+ Unio crassus cytherea Kuster, 1833 — Lopes-Lima et al., 2017

+ Unio (Crassiana) crassus Retzius, 1788 — Vinarski & Kantor, 2016

+ Unio crassus cytherea Kuster, 1833 — Fauna Europaea, 2012

= Unio (Crassiana) crassus decurvatus Rossmässler, 1835 — Falkner et al., 2001

+ Unio crassus cytherea Küster, 1833 — Haas, 1969

+ Unio crassus cytherea Küster, 1833 — Haas, 1940

+ Unio (sec. Lymnium) batavus (Maton & Rackett, 1807) — Simpson, 1914

+ Unio (sec. Lymnium) batavus (Maton & Rackett, 1807) — Simpson, 1900

= Unio (s.s.) decurvatus Rossmässler, 1835 — Paetel, 1890

= Unio decurvatus Rossmässler — Westerlund, 1890

= Unio (Sandriana) decurvatus Rossmässler — Locard, 1889

+ Margaron (Unio) batavus (Mat. & Ract.) — Lea, 1870

= Unio decurvatus Rossmässler, 1835 — Sowerby, 1867

= Unio decurvatus Rossmässler — Küster, 1854

+ Margaron (Unio) batavus (Lam.) — Lea, 1852

= Unio decurvatus Rossm. — C.B. Adams, 1847

= Unio decurvatus Rossmaessler — J.F. Schmidt, 1840

= Mysca decurvata R. — Schlüter, 1838

+ Margarita (Unio) batava Lam. Pfeif. Flem. — Lea, 1838

= Unio decurvatus Rossm. — Rossmässler, 1837

+ Margarita (Unio) batava Lam. — Lea, 1836

= Unio decurvatus mihi — Rossmässler, 1835