Page last updated
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 pictorum var. niger de Joannis, 1859

= Unio tumidus

Taxonomic Opinions

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

+ Unio tumidus tumidus Retzius, 1788 — Haas, 1969

+ Unio tumidus tumidus Retzius, 1788 — Haas, 1940

+ Unio tumidus Philippson — Germain, 1931

= Unio (Rostratiana) niger de Joannis, 1858 — Germain, 1904

= Unio (Groupe de l’U. maximus) niger de Joannis — Locard, 1893

= Unio (pictorum var.) niger Joannis — Westerlund, 1890

= Unio (Rostratiana) niger de Joannis — Locard, 1889

= Unio (Groupe de l’U. rostratus) niger de Joannis — Locard, 1882

= Unio pictorum var. niger Nobis — de Joannis, 1859