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=10229

Search the database pages:

Unionoida | Unionoidea | Unionidae | Ambleminae | Amblemini | Amblema rugicosta

nominal species Megalonoidea rugicosta MacNeil, 1935

MacNeil, 1935, Jour. Paleont. 9: 15, pl. 4, fig. 3; pl. 5, figs. 3-4.

= Amblema rugicosta

Taxonomic Opinions

= Amblema rugicosta (MacNeil, 1935) — Modell, 1957
= Megalonoidea rugicosta n. sp. — MacNeil, 1935

Page updated: 09:09:58 Sun 07 Sep 2025