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Page last updated
Mon 08 Sep 2025

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=3073

Search the database pages:

Unionoidea | Unionidae | Ambleminae | Quadrulini | Quadrulina | Theliderma intermedia

nominal species Quadrula biangulata Morrison, 1942


Morrison, 1942, Bulletin Bur. Amer. Ethnol. 129: 356.
Type(s): HOLOTYPE USNM_84221, Tuscumbia, Alabama.

= Theliderma intermedia

Taxonomic Opinions

+ Theliderma intermedia (Conrad, 1836) — Lopes-Lima et al., 2019
+ Quadrula intermedia (Conrad, 1836) — Williams et al., 2008
+ Quadrula quadrula (Rafinesque, 1820) — Parmalee & Bogan, 1998
+ Quadrula tuberosa (Lea, 1840) — R.I. Johnson, 1980

Page updated: 11:53:30 Mon 08 Sep 2025

 
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