Margarita (Anodonta) abyssina Mort.
	 
	Margarita (Anodonta) angulata Lea
	 
	Margarita (Anodonta) anserina Spix
	 
	Margarita (Anodonta) arcuata Fer.
	 
	Margarita (Anodonta) benedictensis Lea
	 
	Margarita (Anodonta) blainvilliana Lea
	 + Iridina trapezialis d’Orbigny, 1835
	 
	Margarita (Anodonta) buchanensis Lea
	 
	Margarita (Anodonta) chaiziana Rang
	 
	Margarita (Anodonta) crassa Swain.
	 
	Margarita (Anodonta) crispata Lam.
	 
	Margarita (Anodonta) cygneus Drap. Lam. Crouch. Blain. Pfeif. Turt. Des Moul. Flem. Grat. Bouil.
	 + Anodonta spuria of Authors, unknown year
	 + Mytilus anatinus Linnaeus, 1758
	 + Mytilus radiatus Müller, 1774
	 + Mytilus cygneus Schröter, 1779
	 + Mytilus stagnalis Gmelin, 1791
	 + Mytilus fluviatilis Gmelin, 1791
	 + Mytilus zellensis Gmelin, 1791
	 + Anodonta variabilis Draparnaud, 1801
	 + Anodonta cygnaea Poiret, 1801
	 + Mytilus avonensis Montagu, 1803
	 + Anodonta cygnea Draparnaud, 1806
	 + Anodonta anatina Draparnaud, 1806
	 + Mytilus cygneus Maton & Rackett, 1807
	 + Mytilus fucatus Dillwyn, 1817
	 + Anodonta sulcata Lamarck, 1819
	 + Anodonta intermedia Lamarck, 1819
	 + Mytilus incrassatus Sheppard, 1821
	 + Mytilus macula Sheppard, 1821
	 + Anodonta intermedia Pfeiffer, 1821
	 + Anodonta cellensis Pfeiffer, 1821
	 + Anodon paludosus Turton, 1822
	 + Anodonta piscinalis Nilsson, 1822
	 + Anodonta ventricosa C. Pfeiffer, 1825
	 + Anodonta ponderosa C. Pfeiffer, 1825
	 + Anodonta dentiens Menke, 1828
	 + Anodonta compressa Menke, 1830
	 + Anodonta obvoluta Menke, 1830
	 + Anodonta proboscidalis Lea, 1836
	 + Anodonta grossa Gallenstein, 1852
	 
	Margarita (Anodonta) cylindracea Lea
	 
	Margarita (Anodonta) decora Lea
	 
	Margarita (Anodonta) edentula Lea
	 + Anodon areolatus Swainson, 1829
	 
	Margarita (Anodonta) elongata Swain.
	 
	Margarita (Anodonta) ensiformis Spix. D’Orb.
	 
	Margarita (Anodonta) esula Jan.
	 
	Margarita (Anodonta) exilis Lea
	 
	Margarita (Anodonta) ferussaciana Lea
	 
	Margarita (Anodonta) fluviatilis Lea
	 + Mytilus illitus Lightfoot, 1786
	 + Anodonta cataracta Say, 1817
	 + Anodonta marginata Say, 1817
	 + Anodonta implicata Say, 1829
	 + Anodonta teres Conrad, 1834
	 
	Margarita (Anodonta) fragilis Lam.
	 
	Margarita (Anodonta) georginæ Gray
	 
	Margarita (Anodonta) gibbosa Say
	 + Anodonta inflata Lea, 1836
	 
	Margarita (Anodonta) gigantea Lea
	 
	Margarita (Anodonta) glauca Valen.
	 
	Margarita (Anodonta) grandis Say. Lesueur
	 + Anodonta corpulenta Cooper, 1834
	 
	Margarita (Anodonta) incerta Lea
	 + Anodonta imbecillis Say, 1829
	 
	Margarita (Anodonta) lato-marginata Lea. D’Orb.
	 + Anodon trapezeus Wagner, 1827
	 + Anodon rotundus Wagner, 1827
	 
	Margarita (Anodonta) limnoica D’Orb.
	 
	Margarita (Anodonta) magnifica Lea
	 
	Margarita (Anodonta) mortoniana Lea
	 + Unio (Anodontes) chiquitana d’Orbigny, 1835
	 
	Margarita (Anodonta) newtonensis Lea
	 
	Margarita (Anodonta) nuttalliana Lea
	 
	Margarita (Anodonta) obtusa Spix
	 + Anodon obtusus var. lituratum Wagner, 1827
	 
	Margarita (Anodonta) oregonensis Lea
	 
	Margarita (Anodonta) ovata Lea
	 
	Margarita (Anodonta) parishii Gray
	 
	Margarita (Anodonta) patagonica Lam.
	 
	Margarita (Anodonta) pavonia Lea
	 
	Margarita (Anodonta) pepiniana Lea
	 
	Margarita (Anodonta) plana Lea
	 + Anodonta declivis Conrad, 1834
	 
	Margarita (Anodonta) porcifer Gray
	 
	Margarita (Anodonta) purpurea Valen.
	 
	Margarita (Anodonta) salmonia Lea
	 
	Margarita (Anodonta) sinuosa Lam.
	 
	Margarita (Anodonta) sirionos D’Orb.
	 
	Margarita (Anodonta) soleniformis D’Orb.
	 
	Margarita (Anodonta) spixii D’Orb.
	 
	Margarita (Anodonta) stewartiana Lea
	 
	Margarita (Anodonta) subcylindracea Lea
	 
	Margarita (Anodonta) suborbiculata Say
	 
	Margarita (Anodonta) subvexa Con.
	 
	Margarita (Anodonta) tenebricosa Lea. D’Orb.
	 
	Margarita (Anodonta) trapezialis [sic] Lam.
	 + Anodonta exotica Lamarck, 1819
	 + Anodon giganteus Wagner, 1827
	 + Anodon radiatus Wagner, 1827
	 + Anodon susannae Griffith & Pidgeon, 1833
	 + Anodon penicillatus Gray, 1834
	 
	Margarita (Anodonta) trigona Spix
	 
	Margarita (Anodonta) undulata Say
	 + Anodonta pensylvanica Lamarck, 1819
	 + Anodon rugosus Swainson, 1822
	 
	Margarita (Anodonta) uniopsis Lam.
	 
	Margarita (Anodonta) wahlamatensis Lea
	 
	Margarita (Anodonta) wardiana Lea
	 + Anodonta virgata Conrad, 1836
	 
	Margarita (Anodonta) woodiana Lea
	 
	Margarita (Dipsas) discoideus Lea
	 + Unio tenuis Griffith & Pidgeon, 1833
	 
	Margarita (Dipsas) plicatus Leach
	 + Mytilus dubius Gmelin, 1791
	 + Cristaria tuberculata Schumacher, 1817
	 + Anodonta dipsas Blainville, 1825
	 + Symphynota bialata Lea, 1829
	 
	Margarita (Margaritana) arcula Lea
	 
	Margarita (Margaritana) bonellii Lea
	 + Unio depressa C. Pfeiffer, 1825
	 + Alasmodonta compressa Menke, 1830
	 
	Margarita (Margaritana) calceola Lea
	 + Alasmodonta truncata Conrad, 1834
	 
	Margarita (Margaritana) complanata Lea
	 
	Margarita (Margaritana) confragosa Lea
	 
	Margarita (Margaritana) corrientesensis Lea
	 
	Margarita (Margaritana) deltoidea Lea
	 
	Margarita (Margaritana) fabula Lea
	 
	Margarita (Margaritana) fossiculifera Lea
	 
	Margarita (Margaritana) franciscana Mori.
	 
	Margarita (Margaritana) guarayana Lea
	 
	Margarita (Margaritana) holstonia Lea
	 
	Margarita (Margaritana) margaritifera Lea
	 + Margaritana fluviatilis Schumacher, 1817
	 + Unio elongata Lamarck, 1819
	 + Alasmodonta arcuata Barnes, 1823
	 + Unio sinuata C. Pfeiffer, 1825
	 + Unio roissyi Michaud, 1831
	 + Unio rivalis Lea, 1836
	 
	Margarita (Margaritana) marginata Lea
	 + Unio cariosa Lamarck, 1819
	 + Unio varicosa Lamarck, 1819
	 + Unio rugulosus Wood, 1828
	 + Alasmodonta truncata Lea, 1836
	 
	Margarita (Margaritana) minuana Lea
	 
	Margarita (Margaritana) paraguayana Lea
	 
	Margarita (Margaritana) parchappii Lea
	 
	Margarita (Margaritana) radiata Lea
	 
	Margarita (Margaritana) raveneliana Lea
	 
	Margarita (Margaritana) undulata Say
	 + Unio glabratus Sowerby & Sowerby, 1821
	 + Unio hians Valenciennes, 1827
	 + Alasmodonta sculptilis Say, 1829
	 
	Margarita (Unio) acutissimus Lea
	 
	Margarita (Unio) aesopus Green
	 + Unio cicatricosus Conrad, 1834
	 
	Margarita (Unio) alatus Say
	 
	Margarita (Unio) altilis Con.
	 
	Margarita (Unio) ambiguus Lea
	 + Unio ambiguus Sowerby & Sowerby, 1821
	 + Unio ambigua Blainville, 1825
	 + Tetraplodon pectinatus Wagner, 1827
	 + Castalia ambigua Wood, 1828
	 + Castalia quadrilatera d’Orbigny, 1835
	 + Castalia inflata d’Orbigny, 1835
	 
	Margarita (Unio) angulatus Lea
	 + Paxyodon ponderosus Schumacher, 1817
	 + Hyria corrugata Lamarck, 1819
	 + Unio corrugata Blainville, 1825
	 + Triplodon rugosus Wagner, 1827
	 
	Margarita (Unio) angustatus Lea
	 
	Margarita (Unio) angustus Lam.
	 
	Margarita (Unio) anodontoides Lea
	 + Unio (Eurynia) teres Rafinesque, 1820
	 + Unio teres Say, 1834
	 
	Margarita (Unio) apiculatus Say
	 
	Margarita (Unio) arctatus Con.
	 
	Margarita (Unio) arctior Lea
	 
	Margarita (Unio) arcus Con.
	 
	Margarita (Unio) arcæformis Lea
	 + Unio nexus Say, 1831
	 
	Margarita (Unio) asper Lea
	 
	Margarita (Unio) asperrimus Lea
	 + Unio quadrulus Say, 1834
	 
	Margarita (Unio) atratus Lea
	 + Unio fragilis Reeve, 1865
	 
	Margarita (Unio) auratus Lea
	 + Unio depressa Lesson, 1830
	 + Unio obtusa d’Orbigny, 1835
	 
	Margarita (Unio) australis Lam.
	 
	Margarita (Unio) barnesianus Lea
	 
	Margarita (Unio) batava Lam. Pfeif. Flem.
	 + Mya ovalis Lightfoot, 1786
	 + Mya pictorum Gmelin, 1791
	 + Unio pictorum Draparnaud, 1806
	 + Unio sinuatus Studer, 1820
	 + Unio planus Studer, 1820
	 + Unio riparia Pfeiffer, 1821
	 + Unio ater Nilsson, 1822
	 + Unio labacensis Rossmässler, 1835
	 + Unio decurvatus Rossmässler, 1835
	 + Unio fusculus Rossmässler, 1836
	 + Unio gibba Lea, 1836
	 + Unio reniformis Rossmässler, 1836
	 + Unio fuscus Lea, 1836
	 + Unio consentaneus Rossmässler, 1836
	 + Unio amnicus Rossmässler, 1836
	 + Unio carinthiacus Rossmässler, 1836
	 
	Margarita (Unio) bengalensis Lea
	 
	Margarita (Unio) bilineatus Lea. Ben.
	 
	Margarita (Unio) blandingianus Lea
	 
	Margarita (Unio) brevidens Lea
	 
	Margarita (Unio) brownianus Lea
	 
	Margarita (Unio) burroughianus Lea. D’Orb.
	 
	Margarita (Unio) cailliaudii Fer.
	 
	Margarita (Unio) camelus Lea
	 
	Margarita (Unio) camptodon Say
	 + Unio declivis Conrad, 1836
	 
	Margarita (Unio) capsæformis Lea
	 
	Margarita (Unio) carbonarius Lea
	 
	Margarita (Unio) cariosus Say. Bar.
	 
	Margarita (Unio) castaneus Lea
	 
	Margarita (Unio) charruanus d’Orb.
	 
	Margarita (Unio) childreni Gray
	 
	Margarita (Unio) circulus Lea. Eat.
	 + Unio rotundus Wood, 1828
	 
	Margarita (Unio) claibornensis Lea
	 
	Margarita (Unio) clavus Lam. Con.
	 + Obliquaria (Scalenaria) scalenia Rafinesque, 1820
	 + Unio modioliformis Lea, 1834
	 + Unio clavus Conrad, 1835
	 
	Margarita (Unio) coccineus Lea
	 + Unio coccineus Conrad, 1836
	 + Unio catillus Conrad, 1836
	 
	Margarita (Unio) complanatus Lea
	 + Unio violaceus Spengler, 1793
	 + Unio purpureus Say, 1817
	 + Unio rarisulcata Lamarck, 1819
	 + Unio coarctata Lamarck, 1819
	 + Unio purpurascens Lamarck, 1819
	 + Unio rhombula Lamarck, 1819
	 + Unio carinifera Lamarck, 1819
	 + Unio georgina Lamarck, 1819
	 + Unio glabrata Lamarck, 1819
	 + Unio sulcidens Lamarck, 1819
	 + Unio fluviatilis Green, 1827
	 + Unio rigidus Wood, 1828
	 
	Margarita (Unio) compressa Lea
	 
	Margarita (Unio) confertus Lea
	 
	Margarita (Unio) congaræus Lea
	 
	Margarita (Unio) conradicus Lea
	 
	Margarita (Unio) contradens Lea
	 
	Margarita (Unio) cooperianus Lea
	 
	Margarita (Unio) cor Con.
	 
	Margarita (Unio) cornutus Bar.
	 + Obliquaria (Quadrula) reflexa Rafinesque, 1820
	 
	Margarita (Unio) corrianus Lea
	 
	Margarita (Unio) corrugata Lam.
	 + Mya rugosa Gmelin, 1791
	 + Mya nodosa Gmelin, 1791
	 + Mya spuria Gmelin, 1791
	 + Unio corrugata Bruguière, 1797
	 + Unio spuria Lamarck, 1819
	 + Mya spuria Wood, 1825
	 + Unio triradiata Lea, 1836
	 
	Margarita (Unio) crassidens Lam.
	 + Unio (Elliptio) nigra Rafinesque, 1820
	 + Unio cuneatus Barnes, 1823
	 + Unio niger Conrad, 1836
	 
	Margarita (Unio) crassissimus Fer. Des Moul. Grat.
	 + Unio auricularius Spengler, 1793
	 + Unio margaritifera Draparnaud, 1801
	 + Unio rugosa Poiret, 1801
	 + Unio sinuata Lamarck, 1819
	 
	Margarita (Unio) crassus Say. Bar.
	 + Unio ligamentina Lamarck, 1819
	 + Unio crassus Barnes, 1823
	 + Unio ellipticus Barnes, 1823
	 + Unio carinatus Barnes, 1823
	 + Mya gravis Wood, 1828
	 + Unio fasciatus Conrad, 1835
	 
	Margarita (Unio) creperus Lea
	 
	Margarita (Unio) cumberlandianus Lea
	 
	Margarita (Unio) cuprinus Lea
	 + Unio metallicus Say, 1831
	 
	Margarita (Unio) cylindricus Say. Eat. Hild.
	 + Unio naviformis Lamarck, 1819
	 
	Margarita (Unio) cœlatus Con.
	 
	Margarita (Unio) cœruleus [sic] Lea. Ben.
	 
	Margarita (Unio) decisus Lea. Con.
	 
	Margarita (Unio) declivis Say
	 + Unio geometricus Lea, 1834
	 
	Margarita (Unio) dehiscens Say
	 + Unio oriens Lea, 1831
	 
	Margarita (Unio) delodontus Lam.
	 + Unio lacteolus Lea, 1834
	 
	Margarita (Unio) depressus Lam. D’Orb.
	 
	Margarita (Unio) discus Lea
	 
	Margarita (Unio) divaricatus Lea
	 
	Margarita (Unio) dolabræformis Lea
	 
	Margarita (Unio) donaciformis Lea
	 
	Margarita (Unio) dorfeuillianus Lea
	 
	Margarita (Unio) dromas Lea
	 
	Margarita (Unio) ebenus Lea
	 
	Margarita (Unio) egyptiacus Caill. Fer.
	 
	Margarita (Unio) elegans Lea
	 
	Margarita (Unio) ellipsis Lea. Eat.
	 + Unio brevialis Sowerby & Sowerby, 1821
	 
	Margarita (Unio) elongatus [sic] Pfeif.
	 
	Margarita (Unio) emarginatus Lea
	 
	Margarita (Unio) faba d’Orb.
	 
	Margarita (Unio) fabalis Lea
	 + Unio capillus Say, 1831
	 + Unio lapillus Say, 1831
	 
	Margarita (Unio) fisherianus Lea
	 
	Margarita (Unio) foliatus Hild.
	 + Obliquaria (Quadrula) flexuosa Rafinesque, 1820
	 + Unio flexuosus Conrad, 1835
	 
	Margarita (Unio) folliculatus Lea
	 
	Margarita (Unio) fragosus Con.
	 
	Margarita (Unio) fulvus Lea
	 + Unio icterinus Conrad, 1834
	 
	Margarita (Unio) gibber Lea
	 
	Margarita (Unio) gibbosus Bar. Eat. Hild.
	 + Unio nasuta Lamarck, 1819
	 + Unio (Eurynia) dilatata Rafinesque, 1820
	 + Unio mucronatus Barnes, 1823
	 + Unio dilatatus Say, 1834
	 
	Margarita (Unio) gigas Lea
	 
	Margarita (Unio) glaber Lea
	 
	Margarita (Unio) glans Lea
	 
	Margarita (Unio) globosus Lea
	 + Unio capax Green, 1832
	 
	Margarita (Unio) gracilis Barnes. Hild.
	 + Unio planus Barnes, 1823
	 + Unio fragilis Swainson, 1823
	 
	Margarita (Unio) graniferus Lea
	 
	Margarita (Unio) granosus Brug. Lam.
	 
	Margarita (Unio) grayanus Lea
	 
	Margarita (Unio) greenii Con.
	 
	Margarita (Unio) griffithianus Lea
	 
	Margarita (Unio) haysianus Lea
	 
	Margarita (Unio) heterodon Lea
	 
	Margarita (Unio) hildrethianus Lea
	 + Alasmodonta ambigua Say, 1825
	 
	Margarita (Unio) hopetonensis Lea
	 
	Margarita (Unio) hydianus Lea
	 
	Margarita (Unio) inflatus Lea
	 
	Margarita (Unio) infucatus Con.
	 
	Margarita (Unio) interruptus Lea
	 
	Margarita (Unio) iris Lea
	 + Unio nebulosus Conrad, 1834
	 
	Margarita (Unio) irroratus Lea. Eaton
	 + Unio verrucosus albus Hildreth, 1828
	 
	Margarita (Unio) jayensis Lea
	 
	Margarita (Unio) jejunus Lea
	 
	Margarita (Unio) katherinæ Lea
	 
	Margarita (Unio) kirklandianus [sic] Lea
	 
	Margarita (Unio) lacrymosus Lea
	 
	Margarita (Unio) lamellatus Lea
	 
	Margarita (Unio) lanceolatus Lea
	 
	Margarita (Unio) leaii Gray
	 
	Margarita (Unio) lecontianus Lea
	 
	Margarita (Unio) lens Lea
	 
	Margarita (Unio) lienosus Con.
	 
	Margarita (Unio) litoralis [sic] Lam. Pfeif. Des Moul. Grat.
	 + Unio crassus Retzius, 1788
	 + Mya depressa Donovan, 1801
	 + Mya ovata Donovan, 1802
	 + Unio granosus Schumacher, 1817
	 + Unio brevialis Lamarck, 1819
	 + Unio semirugata Lamarck, 1819
	 + Unio nana Lamarck, 1819
	 + Unio litoralis Pfeiffer, 1821
	 + Unio crassus Nilsson, 1822
	 + Unio subtetragonus Michaud, 1831
	 + Unio incurvus Lea, 1831
	 + Unio pianensis Boubée, 1833
	 + Unio rhomboideus Moquin-Tandon, 1855
	 
	Margarita (Unio) lugubris Lea
	 
	Margarita (Unio) luteolus Lam.
	 + Unio siliquoideus Barnes, 1823
	 + Unio inflatus Barnes, 1823
	 
	Margarita (Unio) lævissimus Lea
	 
	Margarita (Unio) maculatus Con.
	 
	Margarita (Unio) marginalis Lam.
	 + Unio anodontina Lamarck, 1819
	 
	Margarita (Unio) masoni Con.
	 
	Margarita (Unio) medellinus Lea
	 
	Margarita (Unio) membranacea Lea
	 + Unio matoniana d’Orbigny, 1835
	 
	Margarita (Unio) menkianus Lea
	 
	Margarita (Unio) metanever Lea
	 + Unio nodosus Barnes, 1823
	 + Unio rugosus Barnes, 1823
	 
	Margarita (Unio) modestus Fer.
	 
	Margarita (Unio) modioliformis Lea
	 + Unio delumbis Conrad, 1834
	 
	Margarita (Unio) monodontus Say. Eat.
	 + Unio soleniformis Lea, 1831
	 
	Margarita (Unio) multiplicatus Lea
	 + Unio heros Say, 1829
	 + Unio undulatus Say, 1831
	 
	Margarita (Unio) multiradiatus Lea
	 + Lampsilis fasciola Rafinesque, 1820
	 + Unio ligamentinus Deshayes, 1835
	 + Unio fasciolus Conrad, 1853
	 
	Margarita (Unio) multistriatus Lea. D’Orb.
	 + Diplodon ellipticum Wagner, 1827
	 
	Margarita (Unio) murchisonianus Lea
	 + Unio douglasiae Griffith & Pidgeon, 1833
	 
	Margarita (Unio) mytiloides Raf.
	 + Unio obliquus Wood, 1828
	 
	Margarita (Unio) mühlfeldianus Lea
	 
	Margarita (Unio) nashvillianus Lea
	 
	Margarita (Unio) nasutus Say. Barn. Swain.
	 + Unio rostrata Valenciennes, 1827
	 + Unio subrostratus Say, 1831
	 
	Margarita (Unio) nicklinianus Lea
	 
	Margarita (Unio) niloticus Fer. Caill.
	 + Mya pictorum of Authors, unknown year
	 
	Margarita (Unio) nodulosus Lea
	 
	Margarita (Unio) notatus Lea
	 
	Margarita (Unio) novi-eboraci Lea
	 
	Margarita (Unio) novæ hollandiæ Gray
	 
	Margarita (Unio) obesus Lea
	 
	Margarita (Unio) obliquus Lam.
	 + Unio trigonus of Authors, unknown year
	 + Obovaria cordata Rafinesque, 1820
	 + Unio undatus Barnes, 1823
	 + Unio mytiloides Short & Eaton, 1831
	 + Unio cordatus Conrad, 1836
	 
	Margarita (Unio) obscurus Lea
	 
	Margarita (Unio) occidens Lea
	 + Unio ventricosus Say, 1832
	 
	Margarita (Unio) ochraceus Say. Con.
	 
	Margarita (Unio) olivarius Lea. Ben.
	 
	Margarita (Unio) orbiculatus Hild.
	 + Unio abruptus Say, 1831
	 + Unio crassus Conrad, 1836
	 
	Margarita (Unio) ovalis Flem. Sow.
	 + Mytilus angustior Lister, 1685
	 + Unio tumidus Retzius, 1788
	 + Mya depressa Donovan, 1801
	 + Mya ovata Donovan, 1802
	 + Unio nodulosa Lamarck, 1819
	 + Mysca solida Turton, 1822
	 + Unio michaudiana Des Moulins, 1833
	 + Unio limaniae Dupuy, 1852
	 
	Margarita (Unio) ovatus Say. Lam. Bar. Valen. Eat. Hild. Con.
	 + Mya ventricosus of Authors, unknown year
	 + Mya subovatus of Authors, unknown year
	 + Mya occidens of Authors, unknown year
	 + Unio ovata Lamarck, 1819
	 + Unio ovata Valenciennes, 1827
	 
	Margarita (Unio) paliatus Ravenel’s letter
	 
	Margarita (Unio) parallelopipedon Lea. D’Orb.
	 
	Margarita (Unio) paranensis Lea. D’Orb.
	 + Unio solisiana d’Orbigny, 1835
	 
	Margarita (Unio) parvus Bar. Eat.
	 + Unio parvus Conrad, 1836
	 
	Margarita (Unio) patagonicus D’Orb.
	 
	Margarita (Unio) patulus Lea
	 
	Margarita (Unio) pectorosus Con.
	 
	Margarita (Unio) penitus Con.
	 
	Margarita (Unio) perdix Lea
	 
	Margarita (Unio) perovalis Con.
	 
	Margarita (Unio) perovatus Con.
	 
	Margarita (Unio) perplexus Lea
	 + Amblema gibbosa Rafinesque, 1820
	 + Unio gibbosus Ferussac, 1835
	 
	Margarita (Unio) personatus Say
	 + Unio capillaris Lea, 1834
	 
	Margarita (Unio) phaseolus Hild. Eat.
	 + Unio cuneatus Hildreth, 1828
	 + Unio planulatus Lea, 1829
	 
	Margarita (Unio) phillipsii Con.
	 
	Margarita (Unio) pictorum Lam. Pfeif. Drap. Blain. Crouch. Flem. Des Moul. Frat. Bouil.
	 + Mya angustata Schröter, 1779
	 + Mya corrugata maroccana Martini & Chemnitz, 1782
	 + Unio pictorum Draparnaud, 1806
	 + Unio pictorum Draparnaud, 1806
	 + Unio rostrata Lamarck, 1819
	 + Unio manca Lamarck, 1819
	 + Unio pictorum Pfeiffer, 1821
	 + Unio limosus Nilsson, 1822
	 + Unio turtonii Payraudeau, 1826
	 + Unio capigliolo Payraudeau, 1826
	 + Unio requienii Michaud, 1831
	 + Unio deshayesii Michaud, 1831
	 + Unio elongatulus Rossmässler, 1835
	 + Unio longirostris Rossmässler, 1836
	 + Unio limovianscae Lea, 1836
	 
	Margarita (Unio) pictus Lea
	 
	Margarita (Unio) pileus Lea
	 
	Margarita (Unio) platyrhynchus Rossmaesler [sic]
	 
	Margarita (Unio) plicatus Lesueur. Say. Bar. Eat. Hild.
	 + Unio multiplicata of Authors, unknown year
	 + Unio peruviana Lamarck, 1819
	 + Unio rariplicata Lamarck, 1819
	 + Unio dombeyana Valenciennes, 1827
	 
	Margarita (Unio) pliciferus Lea
	 
	Margarita (Unio) ponderosus Lea
	 + Mya crassa Wood, 1815
	 
	Margarita (Unio) productus Con.
	 
	Margarita (Unio) pulcher Lea
	 
	Margarita (Unio) pumilis [sic] Lea
	 
	Margarita (Unio) purpuratus Lam.
	 + Mya ventricosa Humphrey, 1797
	 + Unio ater Lea, 1829
	 + Unio lugubris Say, 1832
	 + Unio poulsoni Conrad, 1834
	 
	Margarita (Unio) pustulatus Lea
	 
	Margarita (Unio) pustulosus Lea
	 + Unio verrucosus albus of Authors, unknown year
	 
	Margarita (Unio) pyramidatus Lea
	 + Obliquaria rubra Rafinesque, 1820
	 + Unio mytiloides Conrad, 1836
	 
	Margarita (Unio) radiatus Lam. Bar. Hild.
	 + Mya pictorum tenuis Martini & Chemnitz, 1782
	 + Unio virginiana Lamarck, 1819
	 + Unio oblongatus Wood, 1828
	 
	Margarita (Unio) rangianus Lea
	 
	Margarita (Unio) ravenelianus Lea
	 
	Margarita (Unio) rectus Lam. Eat.
	 + Unio praelongus Barnes, 1823
	 + Unio sageri Conrad, 1836
	 
	Margarita (Unio) retusus Lam. Con.
	 + Obovaria torsa Rafinesque, 1820
	 
	Margarita (Unio) rhombeus Wag.
	 
	Margarita (Unio) roanokensis Lea
	 
	Margarita (Unio) rotundatus Lam.
	 + Unio suborbiculata Lamarck, 1819
	 + Unio glebulus Say, 1831
	 + Unio subglobosus Lea, 1834
	 
	Margarita (Unio) rubellus Con.
	 
	Margarita (Unio) rubiginosus Lea
	 
	Margarita (Unio) schoolcraftensis Lea
	 + Unio prasinus Conrad, 1834
	 
	Margarita (Unio) securis Lea. Eat.
	 + Obliquaria (Plagiola) depressa Rafinesque, 1820
	 + Obliquaria (Ellipsaria) ellipsaria Rafinesque, 1820
	 + Obliquaria (Plagiola) lineolata Rafinesque, 1820
	 
	Margarita (Unio) shepardianus Lea
	 
	Margarita (Unio) simus Lea
	 
	Margarita (Unio) smithii Gray
	 
	Margarita (Unio) solidus Lea
	 
	Margarita (Unio) sowerbianus Lea
	 
	Margarita (Unio) spinosus Lea
	 
	Margarita (Unio) splendidus Lea
	 
	Margarita (Unio) stapes Lea
	 
	Margarita (Unio) stramineus Con.
	 
	Margarita (Unio) subovatus Lea
	 
	Margarita (Unio) subrotundus Lea
	 + Unio brevialis Crouch, 1827
	 + Unio politus Conrad, 1837
	 
	Margarita (Unio) subtentus Say. Con.
	 
	Margarita (Unio) sulcatus Lea. Eat. Say.
	 + Unio ridibundus Say, 1829
	 
	Margarita (Unio) syrmatophorus Lea
	 + Prisodon obliquus Schumacher, 1817
	 + Prisodon truncatus Schumacher, 1817
	 + Hyria avicularis Lamarck, 1819
	 + Hyria avicularis Lamarck, 1819
	 + Unio caudatus Wagner, 1827
	 + Diplodon furcatum Wagner, 1827
	 + Hyria elongata Swainson, 1841
	 
	Margarita (Unio) taitianus Lea
	 
	Margarita (Unio) tampicoensis Lea
	 
	Margarita (Unio) tappanianus Lea
	 
	Margarita (Unio) tenerus Rav.
	 + Unio tenebrosus Conrad, 1834
	 
	Margarita (Unio) tenuissimus Lea
	 + Anodon purpurascens Swainson, 1823
	 + Unio velum Say, 1829
	 
	Margarita (Unio) tetralasmus Say
	 
	Margarita (Unio) tigris Fer.
	 
	Margarita (Unio) trapezoides Lea
	 + Unio crassidens Lamarck, 1819
	 + Unio interruptus Say, 1831
	 
	Margarita (Unio) triangularis Bar. Eat. Hild. Say
	 + Unio cuneatus Swainson, 1823
	 + Unio formosus Lea, 1831
	 
	Margarita (Unio) trigonus Lea
	 
	Margarita (Unio) troostensis Lea
	 + Unio trabalis Conrad, 1834
	 
	Margarita (Unio) truncatus Swain.
	 
	Margarita (Unio) tuberculatus Bar. Eat. Hild.
	 
	Margarita (Unio) turgidus Lea
	 + Unio mortoni Conrad, 1835
	 
	Margarita (Unio) tæniatus Con.
	 
	Margarita (Unio) undulatus Barnes. Valen. Hild. Desh.
	 + Unio undulatus of Authors, unknown year
	 + Amblema costata Rafinesque, 1820
	 + Unio undulata Valenciennes, 1827
	 + Unio costatus Conrad, 1836
	 
	Margarita (Unio) vanuxemensis Lea
	 
	Margarita (Unio) variabilis Lea
	 + Diplodon rotundus Wagner, 1827
	 
	Margarita (Unio) varicosus Lea
	 + Unio cicatricosus Say, 1829
	 
	Margarita (Unio) vaughanianus Lea
	 + Unio carolinensis Lea, 1836
	 
	Margarita (Unio) ventricosus Bar.
	 
	Margarita (Unio) venustus Lea
	 
	Margarita (Unio) verrucosus Bar. Eat.
	 + Obliquaria (Rotundaria) tuberculata Rafinesque, 1820
	 + Unio tuberculosus Valenciennes, 1827
	 + Unio verrucosus purpureus Hildreth, 1828
	 
	Margarita (Unio) vibex Con.
	 
	Margarita (Unio) watereensis Lea
	 + Unio raveneli Conrad, 1834
	 
	Margarita (Unio) zeiglerianus Lea
	 
	Margarita (Unio) zigzag Lea. Eat.
	 
	Platiris (Iridina) exotica Lam.
	 + Iridina striata Swainson, 1823
	 + Anodonta exotica Blainville, 1825
	 
	Platiris (Iridina) ovata Swain.
	 + Iridina exotica Children, 1823
	 + Pleiodon macmurtriei Conrad, 1834
	 
	Platiris (Spatha) cœlestis Lea
	 + Iridina rostrata Rang, 1835
	 
	Platiris (Spatha) elongata Lea
	 
	Platiris (Spatha) nilotica Lea
	 + Mytilus dubius Gmelin, 1791
	 + Mutela oudnoei Koenig, 1826
	 + Iridina mutel Rang, 1835
	 
	Platiris (Spatha) rubens Lea
	 + Anodon clappertoni Koenig, 1826
	 
	Platiris (Spatha) siliquosa Lea
	 + Anodon siliquosus var. pygmaeum Wagner, 1827
	 + Anodon longinus Wagner, 1827
	 + Mycetopoda siliquosus d’Orbigny, 1835
	 
	Platiris (Spatha) soleniformis Lea
	 
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