Ambleminae is a subfamily of freshwater mussel in the family Unionidae. They are found throughout much of eastern North America south to Central America, although fossils are also known from Siberia. Some species have also been introduced to East Asia. They are the most speciose radiation of the Unionidae, with more than 300 species.
Fossils of this group date back to the Late Cretaceous.
Systematics
The following classification is based on MolluscaBase and the MUSSEL Project database:
- Tribe Amblemini <small>Rafinesque, 1820</small>
- Genus Amblema <small>Rafinesque, 1820</small>
- Genus Plectomerus <small>Conrad, 1853</small>
- Genus Reginaia <small>D. C. Campbell & Lydeard, 2012</small>
- Tribe Lampsilini <small>Ihering, 1901</small>
- Genus Actinonaias <small>Crosse & P. Fischer, 1894</small>
- Genus Arotonaias <small>E. von Martens, 1900</small>
- Genus Atlanticoncha <small>C. H. Smith, J. M. Pfeiffer & N. A. Johnson, 2020</small>
- Genus Cambarunio <small>Watters, 2018</small>
- Genus Cyprogenia <small>Agassiz, 1852</small>
- Genus Cyrtonaias <small>Crosse & P. Fischer, 1894</small>
- Genus Delphinonaias <small>Crosse & P. Fischer, 1894</small>
- Genus Disconaias <small>Crosse & P. Fischer, 1894</small>
- Genus Dromus <small>C. T. Simpson, 1900</small>
- Genus Ellipsaria <small>Rafinesque, 1820</small>
- Genus Epioblasma <small>Rafinesque, 1831</small>
- Genus Friersonia <small>Ortmann, 1912</small>
- Genus Glebula <small>Conrad, 1853</small>
- Genus Hamiota <small>Roe & Hartfield, 2005</small>
- Genus Lampsilis <small>Rafinesque, 1820</small>
- Genus Leaunio <small>Watters, 2018</small>
- Genus Lemiox <small>Rafinesque, 1831</small>
- Genus â Lenelliptio <small>C. M. Kolesnikov, 1980</small> (Late Cretaceous of Siberia)
- Genus Ligumia <small>Swainson, 1840</small>
- Genus Medionidus <small>C. T. Simpson, 1900</small>
- Genus Obliquaria <small>Rafinesque, 1820</small>
- Genus Obovaria <small>Rafinesque, 1819</small>
- Genus Ortmanniana <small>Frierson, 1927</small>
- Genus Pachynaias <small>Crosse & P. Fischer, 1894</small>
- Genus Paetulunio <small>Watters, 2018</small>
- Genus Potamilus <small>Rafinesque, 1818</small>
- Genus Ptychobranchus <small>C. T. Simpson, 1900</small>
- Genus Sagittunio <small>Watters, 2018</small>
- Genus Toxolasma <small>Rafinesque, 1831</small>
- Genus Truncilla <small>Rafinesque, 1819</small>
- Genus Venustaconcha <small>Frierson, 1927</small>
- Genus Villosa <small>Frierson, 1927</small>
- Tribe Pleurobemini <small>Hannibal, 1912</small>
- Genus Elliptio <small>Rafinesque, 1819</small>
- Genus Elliptoideus <small>Frierson, 1927</small>
- Genus Eurynia <small>Rafinesque, 1819</small>
- Genus Fusconaia <small>C. T. Simpson, 1900</small>
- Genus Hemistena <small>Rafinesque, 1820</small>
- Genus Parvaspina <small>Perkins, N. A. Johnson & Gangloff, 2017</small>
- Genus Plethobasus <small>C. T. Simpson, 1900</small>
- Genus Pleurobema <small>Rafinesque, 1819</small>
- Genus Pleuronaia <small>Frierson, 1927</small>
- Tribe Popenaiadini <small>Heard & Guckert, 1970</small>
- Genus Barynaias <small>Crosse & P. Fischer, 1894</small>
- Genus Martensnaias <small>Frierson, 1927</small>
- Genus Micronaias <small>C. T. Simpson, 1900</small>
- Genus Nephritica <small>Frierson, 1927</small>
- Genus Nephronaias <small>Crosse & P. Fischer, 1894</small>
- Genus Popenaias <small>Frierson, 1927</small>
- Genus Psoronaias <small>Crosse & P. Fischer, 1894</small>
- Genus Psorula <small>F. Haas, 1930</small>
- Genus Reticulatus <small>Frierson, 1927</small>
- Genus Sphenonaias <small>Crosse & P. Fischer, 1894</small>
- Tribe Quadrulini <small>Ihering, 1901</small>
- Genus Cyclonaias <small>Pilsbry, 1922</small>
- Genus â Eonaias <small>W. B. Marshall, 1929</small> (Pliocene of Texas)
- Genus Megalonaias <small>Utterback, 1915</small>
- Genus â Proparreysia <small>Pilsbry, 1921</small> (Late Cretaceous of Colorado)
- Genus â Protamblema <small>Modell, 1957</small> (Late Cretaceous of Wyoming)
- Genus Quadrula <small>Rafinesque, 1820</small>
- Genus Theliderma <small>Swainson, 1840</small>
- Genus Tritogonia <small>Agassiz, 1852</small>
- Genus Uniomerus <small>Conrad, 1853</small>
References