Page last updated
Wed 1 October 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 | Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Sagittunio

species Sagittunio nasutus (Say, 1817): specimens
     3 available nominal species synonyms (7 total synonyms)

Recent Taxonomic Opinions

Ligumia nasuta — Graf & Cummings (2007), Manendo et al. (2008), Watters et al. (2009), Bogan (2010), Cummings & Graf (2010), ... Jones (2015), Scott et al. (2016), Williams et al. (2017), Gasparini et al. (2020), Hata et al. (2022)
Sagittunio nasutus — Watters (2018), Burlakova et al. (2019), Scott et al. (2020), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), FMCS (2025)

Range

Widespread in the eastern Great Lakes and Atlantic Slope south to Virginia, North America. Introduced into the upper Ohio Basin.

Map of Georeferenced Specimens

USA

Georeferenced Genbank Vouchers

USA

UMMZ_265710. (COI: AF156515, go to Genbank) Douglas Lake, MI.