Page last updated
Thu 17 July 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!

Bivalvia | ... | Unioninae | Anodontini | Alasmidontina | Alasmidonta

species Alasmidonta marginata Say, 1818: specimens
     7 available nominal species synonyms (11 total synonyms)

Recent Taxonomic Opinions

Alasmidonta (Decurambis) marginata — Graf & Cummings (2007)
Alasmidonta marginata — Williams et al. (2008), Chong et al. (2008), Watters et al. (2009), Jadhav & Jamkhedkar (2009), Hoeh et al. (2009), ... Jeratthitikul et al. (2022), Whelan et al. (2023), Chen et al. (2023), Hopper et al. (2023), Dai et al. (2025)
Alasmidonta sp. — Araujo et al. (2018)

Range

Widespread in the Interior Basin, including the Great Lakes, USA and Canada. Introduced to the Hudson River via the Erie Canal, although assumed to be native to the Susquehanna.

Map of Georeferenced Specimens

USA

Georeferenced Genbank Vouchers

USA

UMMZ_265695. (28S, COI) Huron River, Ann Arbor, MI