MUSSELpdb
Taxonomy
Species & Genus Richness of
freshwater mussels
by Taxonomy
Species & Genus Richness of
freshwater bivalves
by Family
Geography
Species Richness & Endemism of
freshwater mussels
by Geography
Data last updated
Sun 12 April 2026
Publication Williams et al. (2008): species taxonomic opinions
Full Citation
Williams, J.D., A.E. Bogan & J.T. Garner. 2008. Freshwater Mussels of Alabama and the Mobile Basin in Georgia, Mississippi and Tennessee. 908 pp.
Taxonomic Opinions
1-187
Actinonaias ligamentina (Lamarck, 1819) = Ortmanniana ligamentina
+ Unio crassus Say, 1817
+ Unio (Elliptio) fasciata Rafinesque, 1820
+ Unio (Elliptio) fasciata var. alternata Rafinesque, 1820
+ Unio (Elliptio) fasciata var. cuprea Rafinesque, 1820
+ Unio (Elliptio) fasciata var. nigrofasciata Rafinesque, 1820
+ Unio carinatus Barnes, 1823
+ Unio ellipticus Barnes, 1823
+ Obliquaria (Sintoxia) calendis Rafinesque, 1831
+ Mya gravis Wood, 1828
+ Unio pinguis Lea, 1857
4 more...
Actinonaias pectorosa (Conrad, 1834) = Ortmanniana pectorosa
+ Unio perdix Lea, 1834
+ Unio biangularis Lea, 1840
+ Unio biangulatus Lea, 1840
Alasmidonta marginata Say, 1818
+ Unio rugulosus Wood, 1828
+ Decurambis scriptum Rafinesque, 1831
+ Alasmodonta truncata ‘Say, in lit.’ of Authors
+ Alasmidonta (Decurambis) marginata susquehannae Ortmann, 1919
+ Alasmidonta (Decurambis) marginata variabilis F.C. Baker, 1928
Alasmidonta mccordi Athearn, 1964
Alasmidonta triangulata (Lea, 1858)
Alasmidonta viridis (Rafinesque, 1820) = Sulcularia viridis
+ Unio calceolus Lea, 1828
+ Alasmodonta truncata Conrad, 1834
+ Margaritana deltoidea Lea, 1838
+ Calceola angulata Swainson, 1840
+ Margaritana minor Lea, 1845
+ Unio diversus Conrad, 1856
+ Alasmidonta (Pressodonta) calceolus danielsi F.C. Baker, 1928
+ Alasmidonta (Pressodonta) calceolus magnalacustris F.C. Baker, 1928
Amblema elliottii (Lea, 1856)
Amblema neislerii (Lea, 1858)
Amblema plicata (Say, 1817)
+ Unio peruviana Lamarck, 1819
+ Unio rariplicata Lamarck, 1819
+ Amblema costata Rafinesque, 1820
+ Unio undulatus Barnes, 1823
+ Unio perplicatus Conrad, 1841
+ Unio atrocostatus Lea, 1845
+ Unio hippopoeus Lea, 1845
+ Unio latecostatus Lea, 1845
+ Unio pearlensis Conrad, 1855
+ Unio brazosensis Lea, 1868
5 more...
Anodonta heardi Gordon & Hoeh, 1995 = Utterbackiana heardi
Anodonta suborbiculata Say, 1831 = Utterbackiana suborbiculata
+ Anodonta (Nayadina) venusta de Gregorio, 1914
Anodontoides radiatus (Conrad, 1834) = Strophitus radiatus
+ Margaritana elliottii Lea, 1858
+ Margaritana elliptica Lea, 1859
+ Anodonta showalterii Lea, 1860
Arcidens confragosus (Say, 1829)
+ Arcidens confragosa jacintoensis Strecker, 1931
Cumberlandia monodonta (Say, 1829)
+ Unio soleniformis Lea, 1831
Cyclonaias tuberculata (Rafinesque, 1820)
+ Unio verrucosus Barnes, 1823
+ Unio verrucosus purpureus Hildreth, 1828
+ Unio graniferus Lea, 1838
+ Quadrula (sec. Rotundaria) granifera var. pusilla Simpson, 1900
+ Quadrula (Cyclonaias) tuberculata utterbackiana Frierson, 1927
Cyprogenia stegaria (Rafinesque, 1820)
+ Obovaria stegaria var. tuberculata Rafinesque, 1820
+ Unio irroratus Lea, 1828
+ Unio verrucosus albus Hildreth, 1828
+ Cyprogenia irrorata var. pusilla Simpson, 1900
Ellipsaria lineolata (Rafinesque, 1820)
+ Obliquaria (Plagiola) depressa Rafinesque, 1820
+ Obliquaria (Ellipsaria) ellipsaria Rafinesque, 1820
+ Unio securis Lea, 1829
+ Unio compressus Rafinesque, 1831
Elliptio arca (Conrad, 1834)
+ Unio luridus Lea, 1852
+ Unio subgibbosus Lea, 1857
+ Unio rufus Lea, 1857
Elliptio arctata (Conrad, 1834)
+ Unio strigosus Lea, 1840
+ Unio tortivus Lea, 1840
+ Unio viridans Lea, 1859
Elliptio chipolaensis (Walker, 1905)
Elliptio crassidens (Lamarck, 1819)
+ Unio (Elliptio) nigra Rafinesque, 1820
+ Unio (Elliptio) nigra var. fusca Rafinesque, 1820
+ Unio (Elliptio) nigra var. maculata Rafinesque, 1820
+ Unio cuneatus Barnes, 1823
+ Obliquaria (Aximedia) venus Rafinesque, 1831
+ Unio incrassatus Lea, 1840
Elliptio dilatata (Rafinesque, 1820) = Eurynia dilatata
+ Unio nasuta Lamarck, 1819
+ Unio gibbosus Barnes, 1823
+ Unio mucronatus Barnes, 1823
+ Obliquaria violacea Rafinesque, 1831
+ Obliquaria bicolor Rafinesque, 1831
+ Bariosta fulvus Rafinesque, 1831
+ Unio arctior Lea, 1838
+ Unio stonensis Lea, 1840
+ Unio gibbosus var. armathwaitensis B.H. Wright, 1898
+ Unio (sec. Elliptio) gibbosus var. delicatus Simpson, 1900
2 more...
Elliptio fraterna (Lea, 1852)
Elliptio fumata (Lea, 1857)
+ Unio subniger Lea, 1857
+ Unio hallenbeckii Lea, 1859
+ Unio quadratus Lea, 1859
+ Unio basalis Lea, 1872
+ Unio gesnerii Lea, 1874
+ Unio invenustus Lea, 1874
Elliptio mcmichaeli Clench & Turner, 1956
Elliptio nigella (Lea, 1852)
+ Unio denigratus Lea, 1857
Elliptio pullata (Lea, 1856) = Elliptio pullata + Elliptio fumata
+ Unio pullatis Lea, 1857
+ Unio sublatus Lea, 1857
+ Unio tetricus Lea, 1857
+ Unio aquilus Lea, 1857
+ Unio roswellensis Lea, 1858
+ Unio viridiradiatus Lea, 1859
+ Unio salebrosus Lea, 1859
+ Unio verutus Lea, 1859
+ Unio mercerii Lea, 1862
+ Unio corneus Lea, 1874
2 more...
Elliptio purpurella (Lea, 1857)
Elliptoideus sloatianus (Lea, 1840)
+ Unio atromarginatus Lea, 1840
+ Unio plectrophorus Conrad, 1849
+ Unio plectophorus Conrad, 1849
+ Unio aratus Conrad, 1849
Epioblasma arcaeformis (Lea, 1831)
+ Unio nexus Say, 1831
Epioblasma biemarginata (Lea, 1857)
Epioblasma brevidens (Lea, 1831)
Epioblasma capsaeformis (Lea, 1834)
Epioblasma cincinnatiensis (Lea, 1840)
Epioblasma flexuosa (Rafinesque, 1820)
+ Unio foliatus Hildreth, 1828
Epioblasma florentina (Lea, 1857) = Epioblasma florentina + Epioblasma walkeri + Epioblasma curtisii
+ Unio saccatus Küster, 1862
+ Unio sacculus Reeve, 1864
+ Truncilla walkeri Wilson & Clark, 1914
+ Truncilla curtisii Frierson & Utterback in Utterback, 1916
Epioblasma haysiana (Lea, 1834)
+ Unio sowerbianus Lea, 1834
Epioblasma lenior (Lea, 1842)
+ Unio lenis Lea, 1840
Epioblasma lewisii (Walker, 1910)
Epioblasma metastriata (Conrad, 1838)
+ Unio compactus Lea, 1859
Epioblasma obliquata (Rafinesque, 1820) = Epioblasma obliquata + Epioblasma perobliqua + Epioblasma rangiana
+ Unio ridibundus Say, 1829
+ Unio perplexus Say, 1829
+ Unio sulcatus Lea, 1829
+ Unio flagellatus Say, 1830
+ Unio gibbosus var. perobliquus Conrad, 1836
+ Unio pectitus Conrad, 1854
+ Truncilla (Scalenaria) sulcata var. delicata Simpson, 1900
+ Unio propesulcatus de Gregorio, 1914
Epioblasma othcaloogensis (Lea, 1857)
+ Unio modicellus Lea, 1859
Epioblasma penita (Conrad, 1834)
Epioblasma propinqua (Lea, 1857)
Epioblasma stewardsonii (Lea, 1852)
Epioblasma torulosa (Rafinesque, 1820) = Epioblasma torulosa + Epioblasma rangiana + Epioblasma gubernaculum
+ Amblema gibbosa Rafinesque, 1820
+ Amblema gibbosa var. difformis Rafinesque, 1820
+ Amblema gibbosa var. olivacea Rafinesque, 1820
+ Amblema gibbosa var. radiata Rafinesque, 1820
+ Amblema torulosa var. angulata Rafinesque, 1820
+ Epioblasma biloba Rafinesque, 1831
+ Unio perplexus Lea, 1831
+ Unio rangianus Lea, 1838
+ Unio gubernaculum Reeve, 1865
Epioblasma triquetra (Rafinesque, 1820)
+ Unio cuneatus Swainson, 1823
+ Unio formosus Lea, 1831
+ Unio triangularis Barnes, 1823
+ Unio triangularis var. longiusculus de Gregorio, 1914
+ Unio triangularis var. pergibosus de Gregorio, 1914
Fusconaia apalachicola Williams & Fradkin, 1999 = Reginaia apalachicola
Fusconaia burkei (Walker in Ortmann & Walker, 1922)
Fusconaia cerina (Conrad, 1838)
+ Unio glandaceus Lea, 1861
+ Unio negatus Lea, 1861
+ Unio rubidus Lea, 1861
+ Quadrula rubidula Frierson, 1905
+ Quadrula (sec. Fusconaia) castanea Simpson, 1914
Fusconaia cor (Conrad, 1834)
+ Unio edgarianus Lea, 1840
+ Unio obuncus Lea, 1871
+ Unio andersonensis Lea, 1872
+ Fusconaia cor var. analoga Ortmann, 1918
Fusconaia cuneolus (Lea, 1840)
+ Unio appressus Lea, 1871
+ Unio tuscumbiensis Lea, 1871
+ Unio flavidus Lea, 1872
Fusconaia ebena (Lea, 1831) = Reginaia ebenus
+ Obovaria obovalis Rafinesque, 1820
+ Obovaria pachostea Rafinesque, 1820
+ Amblema antrosa Rafinesque, 1820
Fusconaia escambia Clench & Turner, 1956
Fusconaia flava (Rafinesque, 1820)
Fusconaia masoni
+ Unio subplanus Conrad, 1837
Fusconaia rotulata (Wright, 1899) = Reginaia rotulata
Fusconaia subrotunda (Lea, 1831)
+ Obliquaria (Rotundaria) subrotunda var. maculata Rafinesque, 1820
+ Unio kirtlandianus Lea, 1834
+ Unio personatus Conrad, 1834
+ Unio pilaris Lea, 1840
+ Unio lesueurianus Lea, 1840
+ Unio globatus Lea, 1871
+ Unio bursapastoris B.H. Wright, 1896
+ Quadrula flexuosa Simpson, 1900
+ Quadrula (sec. Fusconaia) kirtlandiana var. minor Simpson, 1900
+ Quadrula andrewsii Marsh, 1902
3 more...
Glebula rotundata (Lamarck, 1819)
+ Unio suborbiculata Lamarck, 1819
+ Unio glebulus Say, 1831
+ Unio subglobosus Lea, 1834
Hamiota australis (Simpson, 1900)
Hamiota subangulata (Lea, 1840)
+ Unio kirklandianus S.H. Wright, 1897
Hemistena lata (Rafinesque, 1820)
+ Unio dehiscens Say, 1829
+ Unio oriens Lea, 1831
+ Odatelia radiata Rafinesque, 1832
+ Unio hildrethi Delessert, 1841
+ Unio (Sayunio) dehiscens var. oriensopsis de Gregorio, 1914
Lampsilis abrupta (Say, 1831)
+ Toxolasma cyclips Rafinesque, 1831
Lampsilis binominata Simpson, 1900
+ Unio lineatus Lea, 1840
Lampsilis floridensis (Lea, 1852)
Lampsilis ornata (Conrad, 1835) = Lampsilis ornata + Hamiota altilis
+ Unio excavatus Lea, 1857
+ Unio doliaris Lea, 1865
Lampsilis ovata (Say, 1817)
Lampsilis straminea (Conrad, 1834)
+ Unio claibornensis Lea, 1838
+ Unio obtusus Lea, 1840
+ Unio pallescens Lea, 1845
+ Unio contrarius Conrad, 1849
+ Unio perpastus Lea, 1861
Lampsilis teres (Rafinesque, 1820)
+ Unio anodontoides Lea, 1831
+ Lampsilis fallaciosus Smith, 1899
Lampsilis virescens (Lea, 1858)
Lasmigona alabamensis Clarke, 1985 = Pterosyna alabamensis
Lasmigona complanata (Barnes, 1823) = Pterosyna complanata
+ Unio gigas Swainson, 1824
+ Unio katherinae Lea, 1838
Lasmigona costata (Rafinesque, 1820)
+ Alasmodonta rugosa Barnes, 1823
+ Amblasmodon hians Rafinesque, 1831
+ Lasmigona costata var. ereganensis Grier, 1918
+ Lasmigona costata pepinensis F.C. Baker, 1928
+ Lasmigona costata nuda F.C. Baker, 1928
Lasmigona etowaensis (Conrad, 1849) = Alasminota etowaensis
+ Margaritana etowahensis Lea, 1858
+ Margaritana georgiana Lea, 1859
Lasmigona holstonia (Lea, 1838) = Alasminota holstonia + Sulcularia viridis
+ Sulcularia badia Rafinesque, 1831
+ Alasmodonta impressa J.G. Anthony, 1865
Lasmigona subviridis (Conrad, 1835) = Platynaias subviridis
+ Unio tappanianus Lea, 1838
+ Unio neglectus Lea, 1843
+ Unio hyalinus Lea, 1845
+ Margaritana quadrata Lea, 1861
+ Unio pertenuis Lea, 1863
Leptodea fragilis (Rafinesque, 1820) = Potamilus fragilis + Potamilus purpuratus
+ Unio planus Barnes, 1823
+ Unio gracilis Barnes, 1823
+ Lasmonos fragilis Rafinesque, 1831
+ Unio (Niaa) atrata Swainson, 1823
+ Unio permiscens Lea, 1859
+ Lampsilis simpsoni Ferriss, 1900
+ Lampsilis gracilis lacustris F.C. Baker, 1922
+ Medionidus mcglameriae van der Schalie, 1939
Leptodea leptodon (Rafinesque, 1820) = Potamilus leptodon
+ Anodon purpurascens Swainson, 1823
+ Symphynota tenuissima Lea, 1829
+ Unio velum Say, 1829
+ Lampsilis blatchleyi Daniels, 1902
Ligumia recta (Lamarck, 1819)
+ Unio (Eurynia) latissima Rafinesque, 1820
+ Unio praelongus Barnes, 1823
+ Unio sageri Conrad, 1836
+ Unio arquatus Conrad, 1854
+ Unio leprosus Miles, 1861
Ligumia subrostrata (Say, 1831) = Sagittunio subrostratus
+ Unio nashvillianus Lea, 1834
+ Unio mississippiensis Conrad, 1850
+ Unio rutersvillensis Lea, 1859
+ Unio cocoduensis Reeve, 1865
+ Unio topekaensis Lea, 1868
+ Lampsilis (Eurynia) subrostrata var. furva Simpson, 1914
Margaritifera marrianae Johnson, 1983
Medionidus conradicus (Lea, 1834)
+ Obliquaria plateolus Rafinesque, 1831
Medionidus parvulus (Lea, 1860)
Medionidus penicillatus (Lea, 1857)
+ Unio kingii B.H. Wright, 1900
Megalonaias nervosa (Rafinesque, 1820) = Megalonaias nervosa + Amblema plicata
+ Unio crassus var. giganteus Barnes, 1823
+ Unio undulatus Barnes, 1823
+ Unio heros Say, 1829
+ Unio multiplicatus Lea, 1831
+ Unio boykinianus Lea, 1840
+ Unio eightsii Lea, 1860
+ Unio triumphans B.H. Wright, 1898
Obliquaria reflexa Rafinesque, 1820
+ Unio cornutus Barnes, 1823
+ Unio phillipsii Conrad, 1835
+ Obliquaria reflexa conradi Frierson, 1927
Obovaria haddletoni (Athearn, 1964)
Obovaria jacksoniana (Frierson, 1912) = Obovaria arkansasensis
+ Unio castaneus Lea, 1831
Obovaria retusa (Lamarck, 1819)
+ Obovaria torsa Rafinesque, 1820
Obovaria subrotunda (Rafinesque, 1820)
+ Unio (Aximedia) levigata Rafinesque, 1820
+ Obovaria striata Rafinesque, 1820
+ Unio orbiculatus Hildreth, 1828
+ Unio circulus Lea, 1829
+ Unio lens Lea, 1831
+ Unio leibii Lea, 1862
+ Unio depygis Conrad, 1866
+ Obovaria lens var. parva Simpson, 1914
+ Obovaria lens var. elongata Simpson, 1914
+ Obovaria subrotunda globula Morrison, 1942
Obovaria unicolor (Lea, 1845)
+ Unio uber Conrad, 1866
+ Unio tinkeri B.H. Wright, 1899
+ Obovaria (s.s.) nux Simpson, 1914
Plectomerus dombeyanus (Valenciennes, 1827)
+ Unio crassidens Lamarck, 1819
+ Unio interruptus Say, 1831
+ Unio trapezoides Lea, 1831
Plethobasus cicatricosus (Say, 1829)
+ Unio varicosus Lea, 1831
+ Unio detectus Frierson, 1911
+ Unio cicatricoides Frierson, 1911
Plethobasus cooperianus (Lea, 1834)
Pleurobema athearni Gangloff Williams and Feminella, 2006
Pleurobema clava (Lamarck, 1819)
+ Unio (Aximedia) elliptica Rafinesque, 1820
+ Obliquaria (Scalenaria) scalenia Rafinesque, 1820
+ Pleurobema cuneata Rafinesque, 1820
+ Pleurobema mytiloides Rafinesque, 1820
+ Unio patulus Lea, 1829
+ Unio bournianus Lea, 1840
+ Unio consanguineus de Gregorio, 1914
Pleurobema cordatum (Rafinesque, 1820)
+ Unio obliqua Lamarck, 1819
+ Obovaria cordata var. rosea Rafinesque, 1820
Pleurobema curtum (Lea, 1859) = Pleurobema curtum + Pleurobema decisum
+ Unio anaticulus Lea, 1861
Pleurobema decisum (Lea, 1831)
+ Unio chattanoogaensis Lea, 1858
+ Unio consanguineus Lea, 1861
+ Unio crebrivittatus Lea, 1861
Pleurobema fibuloides (Lea, 1859)
+ Unio crapulus Lea, 1861
+ Unio lewisii Lea, 1861
+ Unio altus Conrad, 1854
Pleurobema georgianum (Lea, 1841)
+ Unio nucleopsis Conrad, 1849
+ Unio troschelianus Lea, 1852
+ Unio favosus Lea, 1857
+ Unio irrasus Lea, 1861
+ Unio medius Lea, 1861
Pleurobema hanleyianum (Lea, 1852)
+ Pleurobema aldrichianum Goodrich, 1931
Pleurobema hartmanianus (Lea, 1860) = Pleurobema hartmanianum
+ Unio showalterii Lea, 1860
Pleurobema marshalli Frierson, 1927
Pleurobema oviforme (Conrad, 1834)
+ Unio ravenelianus Lea, 1834
+ Unio rudis Conrad, 1837
+ Unio holstonensis Lea, 1840
+ Unio mundus Lea, 1857
+ Unio lesleyi Lea, 1860
+ Unio tesserulae Lea, 1861
+ Unio striatissimus J.G. Anthony, 1865
+ Unio clinchensis Lea, 1867
+ Unio planior Lea, 1868
+ Unio lawii Lea, 1871
6 more...
Pleurobema perovatum (Conrad, 1834) = Pleurobema perovatum + Pleurobema pyriforme
+ Unio nux Lea, 1852
+ Unio johannis Lea, 1859
+ Unio cinnamomicus Lea, 1861
+ Unio flavidulus Lea, 1861
+ Unio concolor Lea, 1861
+ Unio interventus Lea, 1861
+ Unio pallidofulvus Lea, 1861
+ Unio litus Lea, 1871
+ Unio simulans Lea, 1871
+ Unio pinkstoni S.H. Wright, 1897
Pleurobema plenum (Lea, 1840)
Pleurobema pyriforme (Lea, 1857)
+ Unio striatus Lea, 1840
+ Unio modicus Lea, 1857
+ Pleurobema simpsoni Vanatta, 1915
Pleurobema rubellum (Conrad, 1834)
+ Unio furvus Conrad, 1834
+ Unio pulvinulus Lea, 1845
+ Pleurobema avellana Simpson, 1900
+ Unio (Pleurobema) hagleri Frierson, 1900
+ Pleurobema (s.s.) fictum Frierson, 1927
Pleurobema rubrum (Rafinesque, 1820) = Pleurobema sintoxia
+ Unio cardiacea Guérin-Méneville, 1823
+ Unio pyramidatus Lea, 1831
Pleurobema sintoxia (Rafinesque, 1820) = Pleurobema sintoxia + Unio crassus
+ Unio rubens Menke, 1828
+ Unio solidus Lea, 1838
+ Unio coccineus Conrad, 1836
+ Unio catillus Conrad, 1836
+ Unio cuneus Conrad, 1838
+ Unio gouldianus Ward in Jay, 1839
+ Unio fulgidus Lea, 1845
+ Quadrula (sec. Fusconaia) coccinea var. paupercula Simpson, 1900
+ Pleurobema missouriensis Marsh, 1901
+ Quadrula (sec. Fusconaia) coccinea var. magnalacustris Simpson, 1914
1 more...
Pleurobema stabilis (Lea, 1861) = Pleurobema stabile
+ Unio murrayensis Lea, 1868
Pleurobema strodeanum (Wright, 1898)
+ Pleurobema patsaligensis Simpson, 1900
Pleurobema taitianum (Lea, 1834)
+ Pleurobema tombigbeanum Frierson, 1908
+ Pleurobema (s.s.) aldrichi Frierson, 1927
Pleurobema verum (Lea, 1861)
+ Unio instructus Lea, 1861
Pleuronaia barnesiana (Lea, 1838) = Pleuronaia barnesiana + Pleuronaia estabrookiana + Pleurobema oviforme
+ Unio bigbyensis Lea, 1841
+ Unio estabrookianus Lea, 1845
+ Unio tumescens Lea, 1845
+ Unio meredithii Lea, 1858
+ Unio pudicus Lea, 1860
+ Unio ornatus Lea, 1861
+ Unio lyonii Lea, 1865
+ Unio striatissimus J.G. Anthony, 1865
+ Unio fassinans Lea, 1868
+ Unio crudus Lea, 1871
4 more...
Pleuronaia dolabelloides (Lea, 1840)
+ Unio maculatus Conrad, 1834
+ Unio mooresianus Lea, 1857
+ Unio thorntonii Lea, 1857
+ Unio subglobatus Lea, 1871
+ Unio circumactus Lea, 1871
+ Unio recurvatus Lea, 1871
+ Pleurobema conradi Vanatta, 1915
Potamilus alatus (Say, 1817)
+ Metaptera megaptera Rafinesque, 1820
Potamilus inflatus (Lea, 1831)
+ Unio alabamensis Conrad, 1834
Potamilus ohiensis (Rafinesque, 1820)
+ Symphynota laevissima Lea, 1829
Potamilus purpuratus (Lamarck, 1819)
+ Unio ater Lea, 1829
+ Unio atra Deshayes, 1832
+ Unio lugubris Say, 1832
+ Unio poulsoni Conrad, 1834
+ Unio coloradoensis Lea, 1856
+ Unio dolosus Lea, 1860
Ptychobranchus fasciolaris (Rafinesque, 1820)
+ Obliquaria (Plagiola) interrupta Rafinesque, 1820
+ Obliquaria (Ellipsaria) fasciolaris var. interrupta Rafinesque, 1820
+ Obliquaria (Ellipsaria) fasciolaris var. fuscata Rafinesque, 1820
+ Obliquaria (Ellipsaria) fasciolaris var. longa Rafinesque, 1820
+ Obliquaria (Ellipsaria) fasciolaris var. obliterata Rafinesque, 1820
+ Unio phaseolus Hildreth, 1828
+ Unio planulatus Lea, 1829
+ Unio camelus Lea, 1834
+ Unio compressissimus Lea, 1845
+ Unio imperitus de Gregorio, 1914
3 more...
Ptychobranchus foremanianus (Lea, 1842)
+ Unio velatus Conrad, 1854
+ Unio woodwardius Lea, 1857
+ Unio trinacrus Lea, 1861
Ptychobranchus greenii (Conrad, 1834)
+ Unio brumleyanus Lea, 1841
+ Unio brumbyanus Lea, 1841
+ Unio flavescens Lea, 1845
+ Unio simplex Lea, 1845
Ptychobranchus jonesi (van der Schalie, 1934)
Ptychobranchus subtentum (Say, 1825) = Ptychobranchus subtentus
+ Unio subteritus [sic] var. purchreornatus de Gregorio, 1914
Pyganodon cataracta (Say, 1817)
+ Anodonta teres Conrad, 1834
+ Anodonta excurvata De Kay, 1843
+ Anodonta virgulata Lea, 1857
+ Anodonta dariensis Lea, 1858
+ Anodonta williamsii Lea, 1862
+ Anodonta tryonii Lea, 1862
+ Anodonta dolearis Lea, 1863
+ Anodonta doliaris Lea, 1863
Pyganodon grandis (Say, 1829) = Pyganodon grandis + Brachyanodon californiensis
+ Anodonta lugubris Say, 1829
+ Anodonta corpulenta Cooper, 1834
+ Anodonta declivis Conrad, 1834
+ Anodonta stewartiana Lea, 1834
+ Anodonta palna Lea, 1834
+ Anodonta plana Lea, 1834
+ Symphynota benedictensis Lea, 1834
+ Anodonta gigantea Lea, 1838
+ Anodonta decora Lea, 1838
+ Anodonta salmonia Lea, 1838
32 more...
Quadrula asperata (Lea, 1861) = Pustulosa kieneriana + Pustulosa pustulosa
+ Unio pauperculus Lea, 1861
+ Unio vallatus Lea, 1868
+ Unio cahabensis Lea, 1871
+ Quadrula archeri Frierson, 1905
Quadrula cylindrica (Say, 1817) = Theliderma cylindrica
+ Unio naviformis Lamarck, 1819
+ Unio cylindricus var. strigillatus B.H. Wright, 1898
Quadrula infucata (Conrad, 1834) = Pustulosa infucata
+ Unio securiformis Conrad, 1849
Quadrula intermedia (Conrad, 1836) = Theliderma intermedia
+ Unio tuberosus var. perlobatus de Gregorio, 1914
+ Quadrula biangulata Morrison, 1942
Quadrula kieneriana (Lea, 1852) = Pustulosa kieneriana
Quadrula metanevra (Rafinesque, 1820) = Theliderma metanevra
+ Unio nodosus Barnes, 1823
+ Unio tuberosus Lea, 1840
+ Unio wardii Lea, 1861
Quadrula nobilis (Conrad, 1853)
Quadrula nodulata (Rafinesque, 1820) = Pustulosa nodulata
Quadrula pustulosa (Lea, 1831) = Pustulosa pustulosa
+ Obliquaria (Quadrula) retusa Rafinesque, 1820
+ Obliquaria (Quadrula) bullata Rafinesque, 1820
+ Unio premorsus Rafinesque, 1831
+ Unio nodulosus Say, 1834
+ Unio prasinus Conrad, 1834
+ Unio schoolcraftensis Lea, 1834
+ Unio turgidus Lea, 1838
+ Unio mortoni Conrad, 1835
+ Unio dorfeuillianus Lea, 1838
+ Unio pernodosus Lea, 1845
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Quadrula quadrula (Rafinesque, 1820)
+ Unio rugosus Barnes, 1823
+ Unio lacrymosus Lea, 1828
+ Unio asperrimus Lea, 1831
+ Unio lunulatus Pratt, 1876
+ Quadrula quadrula contraryensis Utterback, 1915
+ Quadrula (Quadrula) quadrula bullocki F.C. Baker, 1928
Quadrula refulgens (Lea, 1868) = Pustulosa pustulosa
Quadrula rumphiana (Lea, 1852) = Quadrula quadrula
+ Unio blandianus Lea, 1857
Quadrula sparsa (Lea, 1841) = Theliderma sparsa
Quadrula stapes (Lea, 1831) = Theliderma stapes
Quadrula succissa (Lea, 1852) = Pustulosa succissa
+ Unio cacao Lea, 1859
Quadrula verrucosa (Rafinesque, 1820)
+ Unio tuberculatus Barnes, 1823
+ Unio (Theliderma) pustulata Swainson, 1840
+ Unio conjugans B.H. Wright, 1899
+ Quadrula tritogonia Ortmann, 1909
+ Quadrula parkeri Geiser, 1911
Strophitus connasaugaensis (Lea, 1858) = Pseudodontoideus connasaugaensis + Pseudodontoideus subvexus
+ Margaritana gesnerii Lea, 1858
+ Anodonta hallenbeckii Lea, 1858
+ Margaritana alabamensis Lea, 1861
Strophitus subvexus (Conrad, 1834) = Pseudodontoideus subvexus
+ Margaritana spillmanii Lea, 1858
+ Margaritana tombecbeensis Lea, 1858
+ Margaritana tombigbeensis Lea, 1862
+ Margaritana columbensis Lea, 1867
Strophitus undulatus (Say, 1817)
+ Anodonta pensylvanica Lamarck, 1819
+ Anodon rugosus Swainson, 1822
+ Alasmodonta edentula Say, 1829
+ Anodon areolatus Swainson, 1829
+ Anodonta virgata Conrad, 1836
+ Anodonta wardiana Lea, 1838
+ Anodonta pavonia Lea, 1838
+ Anodon unadilla De Kay, 1843
+ Anodonta tetragona Lea, 1845
+ Anodonta arkansensis Lea, 1852
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Toxolasma corvunculus of Authors, non Lea, 1868
Toxolasma cylindrellus (Lea, 1868)
Toxolasma germanus (Lea, 1861) = Toxolasma germanum
Toxolasma granulatus (Lea, 1861) = Toxolasma granulatum
Toxolasma lividum (Rafinesque, 1831) = Toxolasma lividum + Toxolasma glans
+ Unio glans Lea, 1831
+ Unio moestus Lea, 1841
Toxolasma parvum (Barnes, 1823)
+ Carunculina parva cahni F.C. Baker, 1927
Toxolasma paulum (Lea, 1840)
Truncilla donaciformis (Lea, 1828)
+ Unio zigzag Lea, 1829
Truncilla truncata Rafinesque, 1820
+ Truncilla truncata var. fusca Rafinesque, 1820
+ Truncilla truncata var. vermiculata Rafinesque, 1820
+ Unio elegans Lea, 1831
+ Unio elegans var. elegantopsis de Gregorio, 1914
+ Unio elegans var. magnelegans de Gregorio, 1914
+ Truncilla truncata var. lacustris F.C. Baker, 1928
Uniomerus columbensis (Lea, 1857) = Uniomerus columbensis + Elliptio fumata
+ Unio plantii Lea, 1857
Uniomerus tetralasmus (Say, 1830) = Uniomerus tetralasmus + Uniomerus declivis
+ Unio camptodon Say, 1832
+ Unio geometricus Lea, 1834
+ Unio excultus Conrad, 1838
+ Unio sayanus ‘Ward’ of Authors
+ Unio sayii Ward in Tappan, 1839
+ Unio parallelus Conrad, 1841
+ Unio symmetricus Lea, 1845
+ Unio rivularis Conrad, 1853
+ Unio porrectus Conrad, 1854
+ Unio subcroceus Conrad, 1854
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Utterbackia imbecillis (Say, 1829)
+ Anodonta incerta Lea, 1834
+ Anodon horda Gould, 1855
+ Anodonta phalena de Gregorio, 1914
+ Utterbackia imbecillis fusca F.C. Baker, 1927
Utterbackia peggyae (Johnson, 1965)
Villosa choctawensis Athearn, 1964 = Obovaria choctawensis
Villosa fabalis (Lea, 1831) = Paetulunio fabalis
+ Unio capillus Say, 1831
+ Unio lapillus Say, 1831
+ Unio donacopsis de Gregorio, 1914
Villosa iris (Lea, 1829) = Cambarunio iris + Cambarunio simus + Cambarunio dactylus + Cambarunio nebulosus
+ Unio notatus Lea, 1838
+ Unio obscurus Lea, 1838
+ Unio zeiglerianus Lea, 1838
+ Margaron (Unio) cumberlandianus Lea, 1852
+ Unio muhlfeldianus Lea, 1838
+ Unio creperus Lea, 1838
+ Unio glaber Lea, 1838
+ Unio simus Lea, 1838
+ Unio novieboraci Lea, 1838
+ Unio amoenus Lea, 1840
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Villosa lienosa (Conrad, 1834) = Leaunio lienosus
+ Unio saxeus Conrad, 1838
+ Unio caliginosus Lea, 1845
+ Unio gouldii Lea, 1845
+ Unio nigerrimus Lea, 1852
+ Unio proximus Lea, 1852
+ Unio fuligo Reeve, 1865
+ Unio subellipsis Lea, 1857
+ Unio concestator Lea, 1857
+ Unio apicinus Lea, 1857
+ Unio fallax Lea, 1857
9 more...
Villosa nebulosa (Conrad, 1834) = Cambarunio nebulosus + Cambarunio jonesii
+ Unio radians Lea, 1857
+ Unio jonesii Lea, 1859
+ Unio plancus Lea, 1860
+ Unio sparus Lea, 1868
+ Unio difficilis Lea, 1868
Villosa taeniata (Conrad, 1834) = Cambarunio taeniatus
+ Unio pictus Lea, 1834
+ Unio interruptus Lea, 1838
+ Unio latiradiatus Conrad, 1838
+ Unio pulcher Lea, 1838
+ Unio menkianus Lea, 1838
+ Unio tennesseensis Lea, 1840
+ Unio camelopardilis Lea, 1860
+ Unio fucatus Lea, 1860
+ Unio lindsleyi Lea, 1860
+ Unio punctatus Lea, 1865
Villosa trabalis (Conrad, 1834) = Venustaconcha trabalis + Venustaconcha troostensis
+ Unio troostensis Lea, 1834
+ Unio troostii ‘Lea’ of Authors
Villosa umbrans (Lea, 1857) = Leaunio umbrans
+ Unio umbrosus Lea, 1857
+ Unio tenebricus Lea, 1857
+ Unio fabaceus Lea, 1861
+ Unio porphyreus Lea, 1861
+ Unio proprius Lea, 1865
Villosa vanuxemensis (Lea, 1838) = Leaunio vanuxemensis
+ Unio nitens Lea, 1840
+ Unio pybasii Lea, 1858
+ Margaron (Unio) vanuxemii ‘Lea’ of Authors
+ Unio copei Lea, 1868
Villosa vibex (Conrad, 1834)
+ Unio exiguus Lea, 1840
+ Unio prevostianus Lea, 1852
+ Unio nigrinus Lea, 1852
+ Unio rutilans Lea, 1857
+ Unio sudus Lea, 1857
Villosa villosa (Wright, 1898) = Villosa villosa + Villosa amygdalum
+ Lampsilis (Villosa) wrightiana Frierson, 1927
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