The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)
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Publication Conrad (1853): taxonomic opinions
publication summary Complete CitationConrad, T.A. 1853. A synopsis of the family of Naïades of North America, with notes, and a table of some of the genera and sub-genera of the family, according to their geographical distribution, and descriptions of genera and sub-genera. Proceedings of the Academy of Natural Sciences of Philadelphia 6: 243-269. Available electronically.
Taxonomic OpinionsAlasmodonta arcula (Lea, 1838) = Alasmidonta arcula Alasmodonta confragosa Say = Arcidens confragosus Alasmodonta marginata (Say) = Alasmidonta varicosa
+ Unio varicosa Lamarck, 1819
+ Unio rugulosus Wood, 1828
+ Alasmodonta truncata Lea, 1836 Alasmodonta marginata (Say) = Alasmidonta marginata Anodonta angulata Lea = Gonidea angulata Anodonta benedictensis Lea = Pyganodon grandis Anodonta buchanensis Lea = Anodontoides ferussacianus Anodonta californiensis Lea Anodonta cataracta Say = Pyganodon cataracta
+ Anodonta fluviatilis Bosc, 1801 Anodonta cognata Gould = Anodonta oregonensis Anodonta couperiana Lea = Utterbackiana couperiana Anodonta cylindracea Lea = Anodontites cylindracea Anodonta declivis Con., 1834 = Pyganodon grandis
+ Anodonta plana Lea, 1834 Anodonta decora Lea = Pyganodon grandis Anodonta denigrata Lea, 1852 = Anodontoides denigratus Anodonta excurvata Dekay = Pyganodon cataracta Anodonta ferruginea Lea = Anodontoides ferussacianus Anodonta ferussaciana Lea = Anodontoides ferussacianus Anodonta footiana Lea = Pyganodon grandis Anodonta fragilis Lam. = Pyganodon fragilis Anodonta gibbosa Say, 1824 = Pyganodon gibbosa Anodonta gigantea Lea = Pyganodon grandis Anodonta glauca Valen. = Anodontites trapesialis Anodonta grandis Say, 1829 = Pyganodon grandis
+ Anodonta corpulenta Cooper, 1834 Anodonta harpenthis [sic] Lea = Pyganodon grandis Anodonta imbecilis [sic] Say, 1829 = Utterbackia imbecillis
+ Anodonta incerta Lea, 1834 Anodonta implicata Say = Utterbackiana implicata
+ Anodonta newtonensis Lea, 1838 Anodonta impura Say, 1829 Anodonta linneana [sic] Lea = Pyganodon grandis Anodonta lugubris Say, 1829 = Pyganodon grandis Anodonta marginata Say = Pyganodon cataracta Anodonta marryattana [sic] Lea = Pyganodon grandis Anodonta nuttalliana Lea Anodonta oblita Lea, 1852 = Anodontoides denigratus Anodonta opaca Lea, 1852 = Pyganodon grandis Anodonta oregonensis Lea Anodonta ovata Lea = Pyganodon grandis Anodonta pavonia Lea = Strophitus undulatus Anodonta pepiniana Lea = Pyganodon grandis Anodonta plicata Hald. = Anodontoides denigratus Anodonta salmonia Lea = Pyganodon grandis Anodonta stewartiana Lea = Pyganodon grandis Anodonta subcylindracea Lea = Anodontoides ferussacianus Anodonta suborbiculata Say = Utterbackiana suborbiculata Anodonta subvexa Con. = Pseudodontoideus subvexus Anodonta teres Con. = Pyganodon cataracta Anodonta virens Lea = Pyganodon grandis Anodonta wahlamatensis Lea = Anodonta nuttalliana Coelatura aegyptiacus Caill. = Coelatura aegyptiaca Complanaria complanata (Barnes) = Lasmigona complanata
+ Unio katherinae Lea, 1838 Complanaria compressa (Lea, 1832) = Platynaias compressa
+ Complanaria alasmodontina Stimpson, 1851 Complanaria costata (Raf.) = Lasmigona costata
+ Alasmodonta rugosa Barnes, 1823 Cucumaria cucumoides (Lea) = Cucumerunio novaehollandiae Hyriopsis delphinus (Gruner) = Hyriopsis bialata Leptodea lata Raf. = Hemistena lata
+ Unio dehiscens Say, 1829
+ Unio oriens Lea, 1831 Leptodea leptodon Raf. = Potamilus leptodon
+ Unio planus Barnes, 1823
+ Anodon purpurascens Swainson, 1823
+ Symphynota tenuissima Lea, 1829 Leptodea leptodon Raf. = Potamilus fragilis Margaritana arcuata (Barnes) = Margaritifera margaritifera Margaritana falcata Gould = Margaritifera falcata Margaritana monodonta (Say) = Cumberlandia monodonta
+ Unio soleniformis Lea, 1831 Metaptera alata (Say) = Potamilus alatus
+ Metaptera megaptera Rafinesque, 1820 Metaptera fragilis (Raf.) = Potamilus fragilis
+ Unio fragilis Swainson, 1823
+ Unio gracilis Barnes, 1823 Metaptera inflata (Lea) = Potamilus inflatus
+ Unio inflatus Conrad, 1836
+ Unio alabamensis Conrad, 1834 Metaptera ohiensis (Raf.) = Potamilus ohiensis
+ Symphynota laevissima Lea, 1829 Monodontina buschiana (Con.) = Pseudodon vondembuschianus
+ Margaritana vondembuschiana Lea, 1840 Nodularia douglasiæ (Gray) = Nodularia douglasiae Parreysia multidentatus (Parreyss) = Parreysia corrugata Plectomerus atromarginatus (Lea) = Elliptoideus sloatianus Plectomerus boykianus [sic] (Lea) = Megalonaias nervosa Plectomerus costatus (Raf.) = Amblema plicata
+ Unio costatus Conrad, 1836
+ Unio undulatus Barnes, 1823
+ Unio latecostatus Lea, 1845 Plectomerus crassidens (Lam.) = Plectomerus dombeyanus
+ Unio interruptus Say, 1831
+ Unio trapezoides Lea, 1831 Plectomerus nicklinianus (Lea) = Megalonaias nickliniana Plectomerus perplicatus (Con.) = Amblema plicata
+ Unio atrocostatus Lea, 1845 Plectomerus plectophorus (Con.) = Elliptoideus sloatianus Plectomerus plicatus (Say) = Amblema plicata
+ Unio peruviana Lamarck, 1819
+ Unio rariplicata Lamarck, 1819
+ Unio dombeyana Valenciennes, 1827
+ Unio crassus Barnes, 1823
+ Unio hippopoeus Lea, 1845 Plectomerus plicatus (Say) = Plectomerus dombeyanus Plectomerus sloatianus (Lea) = Elliptoideus sloatianus Strophitus argentea (Lea) = Anodontoides denigratus Strophitus arkansensis (Lea) = Strophitus undulatus Strophitus calceolus (Lea) = Pressodonta viridis Strophitus curreyanus [sic] (Lea) = Pegias fabula Strophitus deltoideus (Lea) = Pressodonta viridis Strophitus edentulus (Say) = Strophitus undulatus
+ Anodon areolatus Swainson, 1829 Strophitus etowaosis [sic] (Con., 1849) = Alasminota etowaensis Strophitus fabula (Lea) = Pegias fabula Strophitus hildrethianus (Lea) = Simpsonaias ambigua Strophitus holstonia (Lea) = Alasminota holstonia Strophitus minor (Lea) = Pressodonta viridis Strophitus radiatus (Con.) Strophitus ravenelianus (Lea) = Alasmidonta raveneliana Strophitus shæfferiana (Lea) = Strophitus undulatus Strophitus tetragona (Lea, 1846) = Strophitus undulatus Strophitus unadilla (Dekay) = Strophitus undulatus Strophitus undulatus (Say)
+ Anodon rugosus Swainson, 1822
+ Anodonta pensylvanica Lamarck, 1819 Strophitus virgatus (Conrad, 1836) = Strophitus undulatus
+ Anodonta wardiana Lea, 1838 Unio abacus Hald. = Ptychobranchus fasciolaris Unio aberti Con., 1850 = Cyprogenia aberti
+ Unio lamarckianus Lea, 1852 Unio acutissimus Lea, 1834 = Medionidus acutissimus Unio affinis Lea, 1852 = Lampsilis straminea Unio altilis Con. = Hamiota altilis Unio amœnus Lea, 1841 = Cambarunio iris Unio amygdalum Lea, 1846 = Villosa amygdalum Unio angustatus Lea, 1832 = Elliptio angustata Unio apiculatus Say, 1829 = Quadrula quadrula
+ Unio asper Jay, 1839 Unio approximus Lea, 1845 = Lampsilis hydiana Unio arctatus Con. = Elliptio arctata Unio arctior Lea, 1838 = Eurynia dilatata Unio argenteus Lea, 1841 = Pleurobema oviforme Unio asper Lea, 1832 = Quadrula quadrula Unio barnesianus Lea, 1838 = Pleuronaia barnesiana Unio barrattii Lea, 1852 = Elliptio icterina Unio biangulatus Lea, 1841 = Ortmanniana pectorosa Unio bigbyensis Lea, 1841 = Pleuronaia barnesiana Unio binneyi Lea, 1845 = Diplodon rhuacoicus Unio blandingianus Lea, 1834 = Uniomerus carolinianus Unio bournianus Lea, 1841 = Pleurobema clava Unio boydianus Lea, 1841 = Atlanticoncha ochracea Unio brumbyanus Lea, 1841 = Ptychobranchus greenii Unio buckleyi Lea, 1846 = Elliptio jayensis Unio buddianus Lea, 1846 = Elliptio jayensis Unio bullatus Raf., 1820 = Pustulosa pustulosa
+ Unio verrucosus albus Hildreth, 1828
+ Unio pustulosus Lea, 1831 Unio bullatus Raf., 1820 = Cyprogenia stegaria Unio buxeus Lea, 1852 = Elliptio congaraea Unio caliginosus Lea, 1845 = Leaunio lienosus Unio callosus Lea, 1841 = Ortmanniana ligamentina Unio capax Green, 1832 = Potamilus capax
+ Symphynota globosa Lea, 1834 Unio capsæformis Lea, 1834 = Epioblasma capsaeformis Unio cardium Raf., 1820 = Lampsilis cariosa
+ Unio ventricosus Barnes, 1823
+ Unio occidens Lea, 1829
+ Unio subovatus Lea, 1831
+ Unio ovata Lamarck, 1819 Unio cardium Raf., 1820 = Lampsilis cardium Unio cariosus Say = Lampsilis cariosa
+ Unio ovata Valenciennes, 1827
+ Unio cariosus De Kay, 1843 Unio cariosus Say = Lampsilis cardium Unio carolinanus [sic] Bosc = Uniomerus carolinianus
+ Unio obesus Lea, 1831 Unio castaneus Lea, 1832 = Obovaria arkansasensis Unio catillus Conrad, 1836 = Pleurobema sintoxia Unio cerinus Con., 1838 = Fusconaia cerina Unio cicatricosus Say, 1829 = Plethobasus cicatricosus
+ Unio varicosus Lea, 1831 Unio cincinnatiensis Lea, 1841 = Epioblasma cincinnatiensis Unio claibornensis Lea, 1838 = Lampsilis straminea
+ Unio obtusus Lea, 1840 Unio clarkianus Lea, 1852 = Hamiota altilis Unio clava Lamarck, 1819 = Pleurobema clava
+ Pleurobema mytiloides Rafinesque, 1820
+ Obliquaria (Scalenaria) scalenia Rafinesque, 1820
+ Pleurobema cuneata Rafinesque, 1820
+ Unio modioliformis Lea, 1834
+ Unio clavus Conrad, 1835 Unio coccineus ‘Hildreth’ MSS = Pleurobema sintoxia
+ Unio coccineus Lea, 1838 Unio collinus Con. = Parvaspina collina Unio complanatus Solander = Elliptio complanata
+ Unio violaceus Spengler, 1793
+ Unio coarctata Lamarck, 1819
+ Unio purpurascens Lamarck, 1819
+ Unio rhombula Lamarck, 1819
+ Unio carinifera Lamarck, 1819
+ Unio georgina Lamarck, 1819
+ Unio sulcidens Lamarck, 1819
+ Unio glabrata Lamarck, 1819
+ Unio rarisulcata Lamarck, 1819
+ Unio (Elliptio) aurata Rafinesque, 1820
+ Unio purpureus Say, 1817 Unio compressissimus Lea, 1845 = Ptychobranchus fasciolaris Unio concavus Lea, 1852 = Villosa delumbis Unio congaræus Lea, 1832 = Elliptio congaraea Unio conradicus Lea, 1834 = Medionidus conradicus Unio constrictus Con. = Venustaconcha constricta Unio contrarius Con. = Lampsilis straminea Unio cooperianus Lea, 1834 = Plethobasus cooperianus Unio cor Con. = Fusconaia cor Unio cordatus (Raf.) = Pleurobema cordatum Unio creperus Lea = Cambarunio iris Unio crocatus Lea, 1841 = Atlanticoncha ochracea Unio cumberlandianus Lea, 1838 = Cambarunio simus
+ Unio cumberlandicus Lea, 1838 Unio cuneolus Lea, 1842 = Fusconaia cuneolus Unio cuvierianus Lea, 1852 = Elliptio complanata Unio cylindricus Say = Theliderma cylindrica
+ Unio naviformis Lamarck, 1819
+ Unio (Eurynia) solenoides Rafinesque, 1820 Unio cyphius [sic] Raf. = Plethobasus cyphyus
+ Unio aesopus Green, 1827 Unio cyrenoides Philippi, 1848 = Arotonaias cyrenoides Unio dactylus Lea, 1841 = Cambarunio dactylus Unio dariensis Lea, 1841 = Elliptio dariensis Unio decisus Lea, 1832 = Pleurobema decisum Unio declivis Say, 1831 = Uniomerus declivis
+ Unio geometricus Lea, 1834 Unio decoratus Lea, 1852 = Platynaias decorata Unio delumbis Con. = Villosa delumbis
+ Unio modioliformis Lea, 1834 Unio delumbis Con. = Villosa vibex Unio dilatatus Raf. = Eurynia dilatata
+ Obliquaria (Ellipsaria) cuprea Rafinesque, 1820
+ Obliquaria (Ellipsaria) atroviolacea Rafinesque, 1820
+ Unio nasuta Lamarck, 1819
+ Unio gibbosus Barnes, 1823 Unio discus Lea, 1838 = Disconaias disca Unio dolabelloides Lea, 1842 = Pleuronaia dolabelloides Unio dorfeuillianus Lea, 1838 = Pustulosa pustulosa Unio dromas Lea, 1834 = Dromus dromas
+ Unio caperatus Lea, 1845 Unio duttonianus Lea, 1841 = Elliptio lanceolata Unio edgarianus Lea, 1841 = Fusconaia cor Unio excultus Con. = Uniomerus declivis
+ Margaron (Unio) declivis Lea, 1852 Unio exiguus Lea, 1842 = Villosa vibex Unio famelicus Gould = Diplodon granosus Unio fasciatus [Raf.] = Ortmanniana ligamentina
+ Unio crassus Say, 1817
+ Unio carinatus Barnes, 1823
+ Unio ellipticus Barnes, 1823 Unio fasciolaris Raf. = Ptychobranchus fasciolaris
+ Unio phaseolus Hildreth, 1828
+ Obliquaria (Ellipsaria) sinuata Rafinesque, 1820
+ Unio mucronatus Barnes, 1823
+ Unio planulatus Lea, 1829
+ Unio cuneatus Hildreth, 1828
+ Unio camelus Lea, 1834 Unio fasciolaris Raf. = Eurynia dilatata Unio fasciolus Raf. = Hamiota subangulata
+ Unio subangulatus Lea, 1840 Unio fasciolus Raf. = Lampsilis fasciola Unio fatuus Lea = Cambarunio iris Unio fisherianus Lea, 1838 = Elliptio fisheriana
+ Unio nasutus Conrad, 1838 Unio fisherianus Lea, 1838 = Elliptio producta Unio flavescens Lea, 1845 = Ptychobranchus greenii Unio flavus Raf. = Fusconaia flava
+ Unio flavus Conrad, 1837
+ Unio rubiginosus Lea, 1829 Unio flexuosus Raf. = Epioblasma flexuosa
+ Unio flexuosus Conrad, 1835
+ Unio foliatus Hildreth, 1828 Unio floridensis Lea, 1852 = Lampsilis floridensis Unio folliculatus Lea, 1838 = Elliptio folliculata Unio forbesianus Lea, 1852 = Elliptio congaraea Unio foremanianus Lea, 1841 = Ptychobranchus foremanianus Unio fraternus Lea, 1852 = Elliptio fraterna Unio fulgidus Lea, 1845 = Pleurobema sintoxia Unio fuliginosus Lea, 1845 = Elliptio complanata Unio furvus Con. = Pleurobema georgianum
+ Unio hanleyianus Lea, 1852
+ Unio troschelianus Lea, 1852 Unio furvus Con. = Pleurobema rubellum Unio furvus Con. = Pleurobema hanleyianum Unio fuscatus Lea, 1846 = Elliptio occulta Unio geddingsianus Lea, 1841 = Elliptio icterina Unio georgianus Lea, 1841 = Pleurobema georgianum Unio gibber Lea = Pleuronaia gibber Unio gibbesianus Lea, 1852 = Elliptio congaraea Unio glaber Lea, 1838 = Cambarunio iris Unio glans Lea, 1832 = Toxolasma lividum Unio gouldii Lea, 1845 = Leaunio lienosus Unio graniferus Lea = Cyclonaias tuberculata Unio greenii Con. = Ptychobranchus greenii
+ Unio simplex Lea, 1845 Unio griffithianus Lea, 1834 = Elliptio complanata Unio haleianus Lea, 1842 = Leaunio lienosus Unio hayesianus [sic] Lea, 1834 = Epioblasma haysiana Unio hebes Lea, 1852 = Uniomerus carolinianus Unio heterodon Lea, 1833 = Prolasmidonta heterodon Unio holstonensis Lea, 1841 = Pleurobema oviforme Unio hopetonensis Lea, 1838 = Elliptio hopetonensis Unio hyalinus Lea, 1845 = Platynaias subviridis Unio hydianus Lea, 1838 = Lampsilis hydiana Unio icterinus Con. = Elliptio congaraea
+ Unio fulvus Lea, 1834 Unio icterinus Con. = Elliptio icterina Unio ineptus Lea, 1852 = Uniomerus carolinianus Unio infucatus Co. = Pustulosa infucata Unio intermedius Con. = Theliderma intermedia Unio interruptus Raf. = Epioblasma brevidens
+ Unio interruptus Conrad, 1834
+ Unio brevidens Lea, 1831 Unio interruptus Raf. = Ptychobranchus fasciolaris Unio jejunus Lea, 1838 = Elliptio complanata Unio keinerianus [sic] Lea, 1852 = Pustulosa kieneriana
+ Unio keinerianus Lea, 1852 Unio kirtlandianus Lea, 1834 = Fusconaia subrotunda Unio kleinianus Lea, 1852 = Pustulosa kleiniana Unio lapillus Say, 1831 = Paetulunio fabalis
+ Unio fabalis Lea, 1831 Unio latiradiatus Con. = Cambarunio taeniatus
+ Unio interruptus Lea, 1838 Unio lazarus Lea, 1852 = Elliptio arctata Unio lævigatus [sic] Raf. = Obovaria subrotunda
+ Unio lens Lea, 1831 Unio lecontianus Lea, 1838 = Elliptio congaraea Unio lenior Lea, 1841 = Epioblasma lenior Unio leseurianus [sic] Lea, 1842 = Fusconaia subrotunda Unio lienosus Con. = Cambarunio iris
+ Unio obscurus Lea, 1838 Unio lienosus Con. = Leaunio lienosus Unio ligamentinus Lam. = Ortmanniana ligamentina
+ Unio fasciolus Say, 1834
+ Unio multiradiatus Lea, 1829 Unio ligamentinus Lam. = Lampsilis fasciola Unio limatulus Con., 1849 = Elliptio icterina
+ Unio tuomeyi Lea, 1852 Unio lineatus Lea, 1841 = Lampsilis binominata Unio lineolatus (Raf.) = Ellipsaria lineolata
+ Obliquaria (Plagiola) depressa Rafinesque, 1820
+ Unio securis Lea, 1829 Unio lugubris Lea = Elliptio icterina Unio luridus Lea = Elliptio arca Unio luteolus Lam. = Lampsilis radiata
+ Unio siliquoideus Barnes, 1823
+ Unio inflatus Barnes, 1823 Unio luteolus Lam. = Lampsilis siliquoidea Unio maculatus Con., 1834 = Pleuronaia dolabelloides Unio masoni Con. = Fusconaia masoni Unio menkianus Lea, 1838 = Cambarunio taeniatus Unio merus Lea, 1852 = Fusconaia masoni Unio metallicus Say, 1830 = Popenaias metallica
+ Unio cuprinus Lea, 1831 Unio metaneurus [sic] Raf. = Quadrula quadrula
+ Unio nodosus Barnes, 1823
+ Unio rugosus Barnes, 1823 Unio metaneurus [sic] Raf. = Theliderma metanevra Unio minor Lea, 1846 = Toxolasma paulum Unio mississippiensis Con. = Sagittunio subrostratus Unio mœstus Lea, 1841 = Toxolasma lividum Unio monroensis Lea, 1841 = Elliptio monroensis Unio mortoni Con., 1835 = Pustulosa pustulosa
+ Unio turgidus Lea, 1838 Unio moussianus [sic] Lea, 1852 = Elliptio congaraea Unio mühlfeldianus Lea, 1838 = Cambarunio dactylus Unio nashvillianus Lea, 1834 = Sagittunio subrostratus Unio nasutus Say = Sagittunio nasutus
+ Unio nasutus Conrad, 1838
+ Unio rostrata Valenciennes, 1827 Unio nebulosus Con. = Cambarunio nebulosus Unio neglectus Lea, 1846 = Platynaias subviridis Unio nervosus Raf. = Truncilla donaciformis
+ Unio nervosa Conrad, 1834
+ Unio zigzag Lea, 1829
+ Unio donaciformis Lea, 1828 Unio nervosus Raf. = Megalonaias nervosa Unio nexus Say, 1831 = Epioblasma arcaeformis
+ Unio arcaeformis Lea, 1831 Unio nigellus Lea = Elliptio nigella Unio niger Raf. = Elliptio crassidens
+ Unio incrassatus Lea, 1840 Unio nigerrimus Lea, 1852 = Leaunio lienosus Unio nigrinus Lea = Villosa vibex Unio nitens Lea = Leaunio vanuxemensis Unio nodiferus Con. = Pustulosa pustulosa Unio nodulatus Raf. = Pustulosa nodulata
+ Unio pustulatus Lea, 1831
+ Unio nodulatus Say, 1834 Unio notatus Lea, 1838 = Cambarunio simus Unio novi-eboraci Lea, 1838 = Cambarunio iris Unio nucleopsis Con. = Pleurobema georgianum Unio obliquata (Raf.) = Epioblasma obliquata
+ Unio ridibundus Say, 1829
+ Unio sulcatus Lea, 1829 Unio obliquus Lam. = Reginaia ebenus
+ Unio obliqua Ferussac, 1835
+ Unio ebenus Lea, 1831
+ Unio (s.s.) mytiloides Swainson, 1840 Unio obliquus Lam. = Pleurobema cordatum Unio obovalis Raf. = Reginaia ebenus
+ Unio solidus Lea, 1838 Unio obovalis Raf. = Pleurobema sintoxia Unio obtusus Lea = Lampsilis straminea Unio occidentalis Con. = Ptychobranchus occidentalis Unio ochraceus Say = Atlanticoncha ochracea
+ Mytilus fluviatilis Gmelin, 1791
+ Unio rosaceus Conrad, 1849
+ Lampsilis rosea Rafinesque, 1820
+ Lampsilis pallida Rafinesque, 1820 Unio ochraceus Say = Lampsilis cariosa Unio ogeecheensis Con. = Villosa delumbis Unio olivarius Raf. = Obovaria olivaria
+ Unio ellipsis Lea, 1828 Unio oratus Con. = Lampsilis cariosa Unio orbiculatus Hild., 1828 = Lampsilis abrupta
+ Unio abruptus Say, 1831
+ Margarita (Unio) orbiculatus Lea, 1836
+ Unio crassus Conrad, 1836 Unio orbiculatus Hild., 1828 = Obovaria subrotunda Unio oviformis Con. = Pleurobema oviforme Unio paliatus Lea, 1845 = Elliptio complanata Unio pallescens Lea, 1845 = Lampsilis straminea Unio paludicolor [sic] Gould = Uniomerus carolinianus Unio papyraceus Gould = Villosa amygdalum Unio parvus Barnes = Toxolasma parvum Unio paulus Lea = Toxolasma paulum Unio pectitus Con. = Epioblasma obliquata Unio pectorosus Con., 1834 = Ortmanniana pectorosa
+ Unio perdix Lea, 1834 Unio pellucidus Lea, 1845 = Villosa vibex Unio penitus Con. = Epioblasma penita Unio pernodosus Lea, 1845 = Pustulosa pustulosa Unio perovalis Con. = Hamiota perovalis Unio perovatus Con. = Pleurobema perovatum
+ Unio nux Lea, 1852 Unio personatus Say, 1829 = Epioblasma personata
+ Unio capillaris Lea, 1834
+ Unio pileus Lea, 1831 Unio perstriatus Lea, 1852 = Elliptio arctata Unio pictus Lea, 1834 = Cambarunio taeniatus Unio pilaris Lea = Fusconaia subrotunda Unio placitus Lea, 1852 = Hamiota perovalis Unio planitaleris [sic] Con. = Elliptio congaraea Unio plenus Lea, 1842 = Pleurobema plenum Unio plexus Con., 1836 = Diplodon variabilis
+ Unio pliciferus Lea, 1838
+ Unio subtrapezius Philippi, 1847
+ Unio carbonarius Lea, 1838 Unio plexus Con., 1836 = Barynaias plexus Unio politus Say = Fusconaia subrotunda
+ Unio brevialis Lamarck, 1819
+ Unio brevialis Crouch, 1827
+ Unio subrotundus Lea, 1831 Unio politus Say = Potomida littoralis Unio powellii Lea, 1852 = Lampsilis powellii Unio prasinus Con., 1834 = Pustulosa pustulosa
+ Unio schoolcraftensis Lea, 1834 Unio prevostianus Lea, 1852 = Villosa vibex Unio proximus Lea, 1852 = Leaunio lienosus Unio pullus Con. = Toxolasma pullus Unio pulvinulus Lea, 1845 = Pleurobema rubellum Unio pumilis [sic] Lea, 1838 = Fusconaia masoni Unio puniceus Haldeman = Cambarunio iris Unio purpuratus Lam. = Potamilus purpuratus
+ Unio ater Lea, 1829
+ Unio lugubris Say, 1832
+ Unio atra Deshayes, 1832
+ Mya ventricosa Humphrey, 1797 Unio purpuriatus Say, 1829 = Actinonaias medellina
+ Unio medellinus Lea, 1838 Unio purpuriatus Say, 1829 = Disconaias purpuriata Unio pusillus Lea = Elliptio congaraea Unio pygmœus [sic] Lea = Platynaias subviridis Unio quadrulus Raf. = Quadrula quadrula
+ Unio quadrulus Say, 1834
+ Unio asperrimus Lea, 1831
+ Unio lacrymosus Lea, 1828 Unio radiatus Lam. = Cambarunio iris
+ Unio radiatus De Kay, 1843
+ Mya pictorum tenuis Martini & Chemnitz, 1782
+ Unio virginiana Lamarck, 1819
+ Unio oblongatus Wood, 1828 Unio radiatus Lam. = Lampsilis radiata Unio radiatus Lam. = Elliptio complanata Unio rangianus Lea, 1838 = Epioblasma rangiana Unio raveneli Conrad, 1834 = Elliptio icterina
+ Unio confertus Lea, 1834
+ Margarita (Unio) watereensis Lea, 1836 Unio rectus Lam. = Ligumia recta
+ Unio rectus Conrad, 1836
+ Unio (Eurynia) latissima Rafinesque, 1820
+ Unio praelongus Barnes, 1823 Unio reevianus [sic] Lea, 1852 = Lampsilis reeveiana Unio reflexus Raf. = Obliquaria reflexa
+ Unio cornutus Barnes, 1823 Unio regularis Lea, 1841 = Cambarunio iris Unio retusus Lam. = Theliderma stapes
+ Unio retusus Say, 1834
+ Obovaria torsa Rafinesque, 1820
+ Unio obtusa Cuvier, 1817 Unio retusus Lam. = Obovaria retusa Unio rivularis Conrad, 1853 = Uniomerus tetralasmus
+ Unio declivis Conrad, 1836 Unio roanokensis Lea, 1838 = Elliptio roanokensis Unio rosaceus DeKay = Lampsilis siliquoidea Unio rotundatus Lam. = Glebula rotundata
+ Unio suborbiculata Lamarck, 1819
+ Obliquaria (Plagiola) decorticata Rafinesque, 1820
+ Unio glebulus Say, 1831
+ Unio subglobosus Lea, 1834 Unio rubellus Con. = Pleurobema rubellum Unio ruber Raf. = Pleurobema sintoxia
+ Unio pyramidatus Lea, 1831
+ Unio coccineus Jay, 1850 Unio rudis Conrad, 1837 = Pleurobema oviforme
+ Unio ravenelianus Lea, 1834 Unio rufusculus Lea, 1852 = Elliptio congaraea Unio rumphianus Lea, 1852 = Quadrula quadrula Unio sagittiformis Lea, 1852 = Elliptio lanceolata Unio sapotalensis Lea = Actinonaias sapotalensis Unio satur Lea, 1852 = Lampsilis satura Unio saxeus Con. = Leaunio lienosus Unio securiformis Con. = Pustulosa infucata Unio semigranosus V. d. Busch = Psoronaias semigranosa Unio shepardianus Lea, 1834 = Elliptio shepardiana Unio simus Lea, 1838 = Cambarunio simus Unio sintoxia Raf. = Pleurobema sintoxia Unio sordidus Lea, 1852 = Elliptio congaraea Unio sowerbianus Lea, 1834 = Epioblasma haysiana Unio sparsus Lea, 1841 = Theliderma sparsa Unio spatulatus Lea, 1845 = Venustaconcha ellipsiformis Unio spinosus Lea = Elliptio spinosa Unio splendidus Lea = Lampsilis splendida Unio stagnalis Con. = Villosa vibex Unio stapes Lea, 1832 = Theliderma stapes Unio stegarius Raf. = Cyprogenia stegaria
+ Unio stegarius Say, 1834
+ Unio irroratus Lea, 1828 Unio stewardsonii Lea, 1852 = Epioblasma stewardsonii Unio stonensis Lea = Eurynia dilatata Unio stramineus Con. = Lampsilis straminea Unio striatus Lea, 1841 = Pleurobema pyriforme Unio strigosus Lea, 1841 = Elliptio arctata Unio subinflatus Con., 1835 = Elliptio complanata Unio subplanus Con. = Fusconaia masoni Unio subrostratus Say, 1830 = Cambarunio iris
+ Unio iris Lea, 1829 Unio subrostratus Say, 1830 = Sagittunio subrostratus Unio subrotundus Raf. = Obovaria subrotunda
+ Unio subrotundus Ferussac, 1835
+ Obovaria striata Rafinesque, 1820
+ Unio circulus Lea, 1829 Unio taitianus Lea = Pleurobema taitianum Unio tampicoensis Lea = Cyrtonaias tampicoensis Unio tæniatus Con. = Cambarunio taeniatus
+ Unio pulcher Lea, 1838 Unio tecomatensis Lea, 1841 = Cyrtonaias tampicoensis Unio tener Lea, 1842 = Cambarunio iris Unio tenerus Ravenel, Lea, 1834 = Lampsilis radiata
+ Unio tenebrosus Conrad, 1834 Unio tenerus Ravenel, Lea, 1834 = Villosa delumbis Unio tennesseensis Lea, 1842 = Cambarunio taeniatus Unio teres Raf. = Lampsilis teres
+ Unio teres Say, 1834
+ Unio anodontoides Lea, 1831 Unio tetralasmus Say = Uniomerus tetralasmus Unio tortivus Lea, 1842 = Elliptio arctata Unio torulosus (Raf.) = Epioblasma torulosa
+ Unio torulosus Ferussac, 1835
+ Amblema gibbosa Rafinesque, 1820
+ Unio perplexus Lea, 1831 Unio torulosus (Raf.) = Eurynia dilatata Unio trabalis Conrad, 1834 = Venustaconcha troostensis
+ Unio troostensis Lea, 1834 Unio trabalis Conrad, 1834 = Venustaconcha trabalis Unio trigonus Lea, 1832 = Fusconaia flava Unio triqueter Raf. = Epioblasma triquetra
+ Unio triangularis Barnes, 1823
+ Unio formosus Lea, 1831 Unio trossulus Lea = Villosa amygdalum Unio truncatus Raf. = Truncilla truncata
+ Unio elegans Lea, 1831 Unio tuberosus Lea, 1842 = Theliderma metanevra Unio tumescens Lea, 1845 = Pleuronaia barnesiana Unio undatus Barnes = Fusconaia flava Unio unicolor Lea, 1845 = Obovaria unicolor Unio utriculus Lea, 1845 = Fusconaia masoni Unio vanuxemiensis [sic] Lea, 1838 = Leaunio vanuxemensis Unio vaughnianus [sic] Lea, 1838 = Sagittunio vaughanianus Unio velatus Con., 1853 = Ptychobranchus foremanianus Unio venustus Lea, 1838 = Venustaconcha ellipsiformis Unio verrucosus Raf. = Quadrula verrucosa
+ Unio tuberculatus Barnes, 1823 Unio vibex Con. = Villosa vibex Unio viridis Raf. = Pressodonta viridis
+ Unio viridis Conrad, 1835
+ Unio tappanianus Lea, 1838 Unio viridis Raf. = Platynaias subviridis Unio whiteanus [sic] Lea, 1852 = Elliptio icterina Unio zeiglerianus Lea, 1838 = Cambarunio iris
+ Unio zieglerianus Hanley, 1843 Unio (Cunicula) arcus Con., 1834 = Elliptio arca Unio (Cunicula) cælatus Con., 1834 = Lemiox rimosus Unio (Cunicula) eastbrookianus [sic] Lea, 1845 = Pleuronaia barnesiana Unio (Cunicula) fasciolaris Raf. = Ptychobranchus fasciolaris Unio (Cunicula) lineolatus (Raf.) = Ellipsaria lineolata Unio (Cunicula) subtentus Say = Ptychobranchus subtentus Unio (Eurinea) [sic] jayensis Lea, 1838 = Elliptio jayensis Unio (Eurinea) [sic] lanceolatus Lea, 1832 = Elliptio lanceolata Unio (Eurinea) [sic] nasutus Say = Sagittunio nasutus Unio (Eurinea) [sic] productus Con. = Elliptio producta Unio (Eurinea) [sic] rectus Lam. = Ligumia recta Unio (Glebula) rotundatus Lam. = Glebula rotundata Unio (Iridea) charruana D’Orb. = Diplodon charruanus Unio (Iridea) fontainiana D’Orb. = Diplodon fontainianus Unio (Iridea) granosus Lam. = Diplodon granosus Unio (Iridea) guaraniana D’Orb. = Diplodon guaranianus Unio (Iridea) hylæa D’Orb. = Diplodon hylaeus Unio (Iridea) matoniana D’Orb. = Diplodon variabilis Unio (Iridea) paranensis Lea = Diplodon paranensis Unio (Iridea) psammoica D’Orb. = Castalia psammoica Unio (Iridea) rhuacoica D’Orb. = Diplodon rhuacoicus Unio (Iridea) solisiana D’Orb. = Diplodon solisianus Unio (Lampsilis) capax Green, 1832 = Potamilus capax Unio (Lampsilis) cardium Raf., 1820 = Lampsilis cardium Unio (Lampsilis) dolabræformis Lea, 1838 = Lampsilis dolabraeformis Unio (Lampsilis) ochraceus Say = Atlanticoncha ochracea Unio (Lampsilis) ovatus Say = Lampsilis ovata Unio (Lanceolaria) grayanus Lea = Lanceolaria grayii Unio (Mysca) pictorum = Unio pictorum Unio (Theliderma) apiculatus Say, 1829 = Quadrula quadrula Unio (Theliderma) fragosus Con. = Quadrula fragosa Unio (Theliderma) nobilis = Quadrula quadrula Unio (Theliderma) phillipsii Con. = Obliquaria reflexa Unio (Theliderma) quadrulus Raf. = Quadrula quadrula Unio (Uniomerus) camptodon Say = Uniomerus tetralasmus Unio (Uniomerus) declivis Say, 1831 = Uniomerus declivis Unio (Uniomerus) excultus Con. = Uniomerus declivis Unio (Uniomerus) porrectus = Uniomerus tetralasmus Unio (Uniomerus) rivularis Conrad, 1853 = Uniomerus tetralasmus Unio (Uniomerus) sayii = Uniomerus tetralasmus Unio (Uniomerus) subcroceus = Uniomerus tetralasmus Unio (Uniomerus) symmetricus Lea, 1845 = Uniomerus tetralasmus
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