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Wed 1 October 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 tumidus

nominal species Unio tumidus var. falcatulus Drouët, 1881

= Unio tumidus

Taxonomic Opinions

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

+ Unio tumidus Retzius, 1788 — IUCN, 2011

= Tumidiana tumida falcatula (Drouët, 1881) — Kantor et al., 2010

= Tumidiana tumida falcatulus (Drouët, 1881) — Kantor & Sysoev, 2005

= Unio (Tumidusiana) tumidus falcatulus Drouët, 1881 — Stadnichenko, 1984

+ Unio tumidus borysthenensis Kobelt, 1879 — Haas, 1969

+ Unio tumidus borysthenensis Kobelt, 1879 — Haas, 1940

+ — Simpson, 1914

= Unio (s.s.) tumidus vr. falcatulus Drouet, 1881 — Paetel, 1890

= Unio tumidus var. falcatulus Drouet, 1881 — Westerlund, 1890

= Unio tumidus var. falcatulus — Drouët, 1881