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=10529

Search the database pages:

Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Toxolasma parvum

nominal species Unio pertenuis Watters et al., 2009

‘de Gregorio’ Watters et al., 2009, Freshw. Mussels OH: 302.
(error for Unio pertennis de Gregorio, 1914)

= Toxolasma parvum

Page updated: 10:50:32 Thu 24 Jul 2025