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!

The MUSSEL Project Database is moving to a new server, with a new URL! The new address for this page will be: https://musselpdb.org/fmuotwaolcb/db.php?ty=nomsp&id=7706

Search the database pages:

Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus

nominal species Unio valleriacus Germain, 1931

‘Bourg. in Loc.’ Germain, 1931, Faune de France 22: 727.
(error for Unio valliericus Locard, 1889)

= Unio crassus

Page updated: 10:46:41 Thu 24 Jul 2025