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!
Bivalvia | ... | Anodontini | Alasmidontina | Pressodonta viridis nominal species Alasmidonta marginata Say, 1834 Say, 1834. Amer. Conch. 6: ??.
(misidentified reference to Alasmidonta marginata Say, 1818) = Pressodonta viridis Taxonomic Opinions+ Alasmidonta (Pressodonta) calceola (Lea, 1828) — Frierson, 1927 + Alasmidonta (Rugifera) marginata Say, 1819 — Simpson, 1900 + Margaron (Margaritana) calceola (Lea) — Lea, 1870 + Unio calceolus Lea — Ferussac, 1835
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