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 has moved to a new server, with a new URL! The new address for this page is: https://musselpdb.org/db.php?ty=nomsp&id=5862

Search the database pages:

Unionoidea | Unionidae | Ambleminae | Quadrulini | Quadrulina | Theliderma metanevra

nominal species Unio metanera Gray, 1847

Gray, 1847, Proc. Zool. Soc. London 15: 196.
(error for Obliquaria (Quadrula) metanevra Rafinesque, 1820)

= Theliderma metanevra

Page updated: 11:35:05 Mon 08 Sep 2025