MUSSELpdb | subtribe Alasmidontina Rafinesque, 1820

	Home \| About \| Database \| Mussel of the Month \| Publications & Presentations


MUSSELpdb
	Introduction Browse d'basing


Taxonomy
	all genera Unionidae Margaritiferidae Hyriidae Etheriidae Mycetopodidae Iridinidae Species & Genus Richness by Taxonomy


Geography
	Summary North America Central America South America Afrotropics North Eurasia East Asia Australasia Species Richness & Endemism by Geography

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!

Search the database pages:

subtribe ALASMIDONTINA Rafinesque, 1820
synonyms (3 nomina) | cladomics

genus Alasmidonta Say, 1818: 11 Recent species.
synonymy (11 available nomina) | 11 species
Distribution: North America

genus Alasminota Ortmann, 1914: 2 Recent species.
synonymy (2 available nomina) | 2 species
Distribution: North America

genus Anodontoides Simpson in F.C. Baker, 1898: 2 Recent species.
synonymy (2 available nomina) | 2 species
Distribution: North America

genus Arcidens Simpson, 1900: 2 Recent species.
synonymy (2 available nomina) | 3 species
Distribution: North America

genus Lasmigona Rafinesque, 1831: 1 Recent species.
synonymy (5 available nomina) | 1 species
Distribution: North America

genus Ligodonta Perkins, DeVilbiss & Whelan in Perkins et al., 2025: 1 Recent species.
synonymy (1 available nomina) | 1 species
Distribution: North America

genus Pegias Simpson, 1900: 1 Recent species.
synonymy (1 available nomina) | 1 species
Distribution: North America

genus Platynaias Walker, 1918: 3 Recent species.
synonymy (1 available nomina) | 3 species
Distribution: North America

genus Pressodonta Simpson, 1900: 1 Recent species.
synonymy (2 available nomina) | 1 species
Distribution: North America

genus Prolasmidonta Ortmann, 1914: 1 Recent species.
synonymy (1 available nomina) | 1 species
Distribution: North America

genus Pseudodontoideus Frierson, 1927: 2 Recent species.
synonymy (1 available nomina) | 2 species
Distribution: North America

genus Pterosyna Rafinesque, 1831: 2 Recent species.
synonymy (5 available nomina) | 2 species
Distribution: North America

genus Pyganodon Crosse & Fischer, 1894: 6 Recent species.
synonymy (2 available nomina) | 6 species
Distribution: North America, Central America

genus Simpsonaias Frierson, 1914: 1 Recent species.
synonymy (2 available nomina) | 1 species
Distribution: North America

genus Strophitus Rafinesque, 1820: 5 Recent species.
synonymy (2 available nomina) | 8 species
Distribution: North America

genus Utterbackia F.C. Baker, 1927: 3 Recent species.
synonymy (1 available nomina) | 3 species
Distribution: North America, Central America

genus Utterbackiana Frierson, 1927: 5 Recent species.
synonymy (2 available nomina) | 5 species
Distribution: North America

"Making the world a better place, one mollusk at a time."
	The MUSSEL Project — Home Page https://musselpdb.org/. Site developed and maintained by Dan Graf & Kevin Cummings. Funded by The National Science Foundation.