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=1823

Search the database pages:

Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Obovaria retusa

nominal species Unio incurvis Say, 1829

Say, 1829, New Harm. Dissem. 2(19): 293.

= Obovaria retusa

Taxonomic Opinions

+ Obovaria (s.s.) retusa (Lamarck, 1819) — Haas, 1969
+ Obovaria (s.s.) retusa (Lamarck, 1819) — Frierson, 1927
+ Margaron (Unio) retusus (Lam.) — Lea, 1870

Page updated: 11:31:54 Mon 08 Sep 2025