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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Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Sphenonaias opacata nominal species Unio opacatus Crosse & Fischer, 1894 = Sphenonaias opacata Taxonomic Opinions= Sphenonaias opacata (Crosse & Fischer, 1894) — Cummings et al., 2025 = Barynaias opacata (Crosse & Fischer, 1894) — Czaja et al., 2023 = Barynaias opacata (Crosse & Fischer, 1893) — Graf & Cummings, 2021 = Barynaias opacata Crosse & Fischer, 1893 — Bogan, 2010 = Barynaias opacata (Crosse & Fischer, 1893) — Graf & Cummings, 2007 = Elliptio opacata Crosse y Fischer, 1893 — Contreras-Arquieta, 2000 = Barynaias opacatus (Crosse & Fischer, 1893) — Haas, 1969 = Elliptio (Barynaias) opacatus (Crosse & Fischer, 1893) — Frierson, 1927 = Unio (sec. Elliptio) opacatus Crosse & Fischer, 1893 — Simpson, 1914 = Unio (sec. Elliptio) opacatus Crosse & Fischer, 1893 — Simpson, 1900 = Unio (Elliptio) opacatus Crosse & Fischer, 1893 — Martens, 1900 = Unio (Uniomerus) opacatus Crosse & Fischer, 1893 — Fischer & Crosse, 1894
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