![](../graphics/motm/e_capsaeformis_tn.jpg) genus Epioblasma Rafinesque, 1831: 28 Recent species. 15 generic synonyms | 29 valid species | cladomics Distribution: North America. |
![](../graphics/motm/l_teres_tn.png) genus Lampsilis Rafinesque, 1820: 26 Recent species. 7 generic synonyms | 34 valid species | cladomics Distribution: North America. |
![](../graphics/motm/p_capax_tn.png) genus Potamilus Rafinesque, 1818: 10 Recent species. 25 generic synonyms | 11 valid species | cladomics Distribution: East Asia, North America. |
![](../graphics/motm/a_sapotalensis_tn.jpg) genus Actinonaias Crosse & Fischer, 1894: 7 Recent species. 4 generic synonyms | 10 valid species | cladomics Distribution: Central America. |
![](../graphics/motm/c_iris_tn.jpg) genus Cambarunio Watters, 2018: 7 Recent species. 1 generic synonym | 7 valid species | cladomics Distribution: North America. |
![](../graphics/motm/o_olivaria_tn.png) genus Obovaria Rafinesque, 1819: 7 Recent species. 5 generic synonyms | 7 valid species | cladomics Distribution: North America. |
![](../graphics/motm/t_lividum_tn.jpg) genus Toxolasma Rafinesque, 1831: 7 Recent species. 4 generic synonyms | 7 valid species | cladomics Distribution: North America. |
![](../graphics/motm/d_disca_tn.jpg) genus Disconaias Crosse & Fischer, 1894: 6 Recent species. 2 generic synonyms | 6 valid species | cladomics Distribution: Central America, North America. |
![](../graphics/motm/m_conradicus_tn.jpg) genus Medionidus Simpson, 1900: 6 Recent species. 2 generic synonyms | 7 valid species | cladomics Distribution: North America. |
![](../graphics/motm/p_fasciolaris_tn.png) genus Ptychobranchus Simpson, 1900: 6 Recent species. 3 generic synonyms | 8 valid species | cladomics Distribution: North America. |
![](../graphics/motm/l_lienosus_tn.jpg) genus Leaunio Watters, 2018: 5 Recent species. 1 generic synonym | 5 valid species | cladomics Distribution: North America. |
![](../graphics/motm/v_ellipsiformis_tn.jpg) genus Venustaconcha Frierson, 1927: 5 Recent species. 2 generic synonyms | 5 valid species | cladomics Distribution: North America. |
![](../graphics/motm/c_tampicoensis_tn.jpg) genus Cyrtonaias Crosse & Fischer, 1894: 4 Recent species. 3 generic synonyms | 4 valid species | cladomics Distribution: Central America, North America. |
![](../graphics/motm/h_kirklandiana_tn.png) genus Hamiota Roe & Hartfield, 2005: 4 Recent species. 1 generic synonym | 4 valid species | cladomics Distribution: North America. |
![](../graphics/motm/s_nasutus_tn.jpg) genus Sagittunio Watters, 2018: 4 Recent species. 1 generic synonym | 4 valid species | cladomics Distribution: North America. |
![](../graphics/motm/t_truncata_tn.jpg) genus Truncilla Rafinesque, 1819: 4 Recent species. 4 generic synonyms | 4 valid species | cladomics Distribution: North America. |
![](../graphics/motm/v_villosa_tn.jpg) genus Villosa Frierson, 1927: 4 Recent species. 1 generic synonym | 4 valid species | cladomics Distribution: North America. |
![](../graphics/motm/a_cyrenoides_tn.jpg) genus Arotonaias Martens, 1900: 3 Recent species. 3 generic synonyms | 3 valid species | cladomics Distribution: Central America. |
![](../graphics/motm/d_delphinulus_tn.jpg) genus Delphinonaias Crosse & Fischer, 1894: 3 Recent species. 3 generic synonyms | 3 valid species | cladomics Distribution: Central America. |
![](../graphics/motm/c_stegaria_tn.jpg) genus Cyprogenia Agassiz, 1852: 2 Recent species. 3 generic synonyms | 2 valid species | cladomics Distribution: North America. |
![](../graphics/motm/a_ligamentina_tn.jpg) genus Ortmanniana Frierson, 1927: 2 Recent species. 1 generic synonym | 2 valid species | cladomics Distribution: North America. |
![](../graphics/motm/p_spheniopsis_tn.jpg) genus Pachynaias Crosse & Fischer, 1894: 2 Recent species. 2 generic synonyms | 2 valid species | cladomics Distribution: Central America. |
![](../graphics/motm/a_ochracea_tn.jpg) genus Atlanticoncha Smith, Pfeiffer & Johnson, 2020: 1 Recent species. 1 generic synonym | 1 valid species | cladomics Distribution: North America. |
![](../graphics/motm/d_dromas_tn.jpg) genus Dromus Simpson, 1900: 1 Recent species. 3 generic synonyms | 1 valid species | cladomics Distribution: North America. |
![](../graphics/motm/e_lineolata_tn.jpg) genus Ellipsaria Rafinesque, 1820: 1 Recent species. 3 generic synonyms | 1 valid species | cladomics Distribution: North America. |
![](../graphics/motm/f_iridella_tn.jpg) genus Friersonia Ortmann, 1912: 1 Recent species. 1 generic synonym | 1 valid species | cladomics Distribution: Central America. |
![](../graphics/motm/g_rotundata_tn.jpg) genus Glebula Conrad, 1853: 1 Recent species. 1 generic synonym | 1 valid species | cladomics Distribution: North America. |
![](../graphics/motm/l_rimosus_tn.jpg) genus Lemiox Rafinesque, 1831: 1 Recent species. 2 generic synonyms | 2 valid species | cladomics Distribution: North America. |
![](../graphics/motm/l_recta_tn.jpg) genus Ligumia Swainson, 1840: 1 Recent species. 4 generic synonyms | 9 valid species | cladomics Distribution: North America. |
![](../graphics/motm/o_reflexa_tn.jpg) genus Obliquaria Rafinesque, 1820: 1 Recent species. 2 generic synonyms | 1 valid species | cladomics Distribution: North America. |
![](../graphics/motm/p_fabalis_tn.jpg) genus Paetulunio Watters, 2018: 1 Recent species. 2 generic synonyms | 1 valid species | cladomics Distribution: North America. |