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!

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Unionoidea | Unionidae | Unioninae | Anodontini | Alasmidontina | Pressodonta viridis

nominal species Calceola angulata Swainson, 1840

Swainson, 1840, Treat. Malacol.: 382.
(new name for Unio calceolus Lea, 1828)

= Pressodonta viridis

Taxonomic Opinions

+ Alasmidonta viridis (Rafinesque, 1820) — Watters et al., 2009
+ Alasmidonta viridis (Rafinesque, 1820) — Williams et al., 2008
+ Alasmidonta viridis (Rafinesque, 1820) — Parmalee & Bogan, 1998
+ Alasmidonta (Pressodonta) viridis (Rafinesque, 1820) — Clarke, 1981
+ Calceola calceolus (Lea) — Walker, 1918
- OMITTED — Simpson, 1914
+ Margaron (Margaritana) calceola (Lea) — Lea, 1870
= Calceola angulata Swainson, 1840 — Swainson, 1840

Page updated: 08:18:18 Tue 01 Jul 2025