Publication Simpson (1914): species taxonomic opinions

Simpson, C.T. 1914. A descriptive catalogue of the naiades, or pearly fresh-water mussels. Parts I-III. 1540 pp. https://www.biodiversitylibrary.org/page/11344898.

Parreysia (s.s.) (Group of P. rugosa) gowhattensis (Theobald) = Parreysia marcens

+ Parreysia gowhattenensis Simpson, 1900

+ Unio gowlattensis Paetel, 1890

Parreysia (s.s.) (Group of P. rugosa) modesta (Heude) = Ptychorhynchus murinum

+ Unio simpularius Heude, 1884

Parreysia (s.s.) (Group of P. rugosa) perconvexa Preston = Leoparreysia perconvexa

Parreysia (s.s.) (Group of P. rugosa) rugosa (Gmelin) = Indonaia rugosa

Parreysia (s.s.) (Group of P. rugosa) sikkimensis (Lea) = Parreysia corrugata

Parreysia (s.s.) (Group of P. rugosa) trisulcata (Heude) = Inversidens trisulcata

Pegias fabula (Lea)

+ Margaritana curreyiana Lea, 1840

+ Margaritana correyana ‘Lea’ of Authors

Physunio (s.s.) cambodiensis (Lea) = Lens contradens

Physunio (s.s.) crossei (Deshayes and Julien) = Lens micropterus

Physunio (s.s.) gravidus (Lea) = Physunio superbus

+ Unio abnormis Morelet, 1862

+ Unio superbus Sowerby, 1867

Physunio (s.s.) micropterus (Morelet) = Lens micropterus

Physunio (s.s.) semialatus (Deshayes and Julien) = Lens micropterus

Physunio (s.s.) superbus (Lea) = Physunio superbus + Physunio massini

+ Unio velaris Hanley, 1856

+ Unio massini Morelet, 1864

Physunio (sec. Lens) eximius (Lea) = Lens eximius

+ Unio semiquadrata Sowerby, 1866

Physunio (sec. Lens) friersoni n.n. = Lamellidens friersoni

+ Unio velaris ‘Benson, in Hanley’ Sowerby, 1868

Pilsbryoconcha carinifera (Conrad)

Pilsbryoconcha exilis (Lea) = Pilsbryoconcha exilis + Pseudanodonta complanata + Pilsbryoconcha carinifera

+ Anodonta siliqua Küster, 1853

+ Anodonta polita Mousson, 1849

+ Monocondyloea compressa Lea, 1863

+ Anodon javona G.B. Sowerby II, 1867

+ Anodon gracilis G.B. Sowerby II, 1867

+ Anodon kelletii G.B. Sowerby II, 1867

+ Anodonta sempervivens Deshayes in Deshayes & Jullien, 1874

Pilsbryoconcha expressa (von Martens)

Pilsbryoconcha lemeslei (Morelet) = Namkongnaia lemeslei

+ Pilsbryoconcha lemsleyi ‘Morelet’ of Authors

Pilsbryoconcha linguæformis (Morelet) = Pilsbryoconcha linguaeformis

Pilsbryoconcha schomburgki (von Martens)

Pilsbryoconcha suilla (von Martens) = Sinanodonta jourdyi

Plagiola (Amygdalonaias) (Group of P. donaciformis) cognata (Lea) = Truncilla cognata

Plagiola (Amygdalonaias) (Group of P. donaciformis) donaciformis (Lea) = Truncilla donaciformis

+ Unio zigzag Lea, 1829

+ Unio nervosa ‘Rafinesque’ of Authors

Plagiola (Amygdalonaias) (Group of P. donaciformis) macrodon (Lea) = Truncilla macrodon

Plagiola (Amygdalonaias) (Group of P. elegans) elegans (Lea) = Truncilla truncata

+ Unio truncatus Say, 1834

Plagiola (Arotonaias) (Group of P. cyrenoides) cyrenoides (Philippi) = Arotonaias cyrenoides

+ Unio newcombianus Lea, 1856

+ Unio sagrinatus Sowerby, 1868

+ Unio gabbianus Martens, 1900

Plagiola (Arotonaias) (Group of P. cyrenoides) imbricata (Mörch) = Arotonaias encarpa

+ Unio encarpus Lea, 1868

Plagiola (Arotonaias) (Group of P. nicaraguensis) nicaraguensis (Lea) = Arotonaias gabbiana

+ Unio gabbianus Lea, 1868

Plagiola (Arotonaias) (Group of P. sallei) sallei (Crosse and Fischer) = Nephronaias sallei

Plagiola (Arotonaias) (Group of P. sallei) sallei var. grossa (von Martens) = Pachynaias spheniopsis

Plagiola (s.s.) securis (Lea) = Ellipsaria lineolata

+ Obliquaria (Plagiola) depressa Rafinesque, 1820

+ Unio lineolatus ‘Rafinesque’ of Authors

Pleiodon anceyi (Bourguignat, 1885) = Pleiodon spekii

Pleiodon complanata (Bourguignat, 1885) = Pleiodon spekii

Pleiodon dromauxi (Bourguignat, 1885) = Pleiodon spekii

Pleiodon guillemeti (Bourguignat, 1885) = Pleiodon spekii

Pleiodon jouberti (Bourguignat, 1885) = Pleiodon spekii

Pleiodon locardiana (Bourguignat, 1885) = Pleiodon spekii

Pleiodon mabilliana (Bourguignat, 1885) = Pleiodon spekii

Pleiodon marioniana (Bourguignat, 1885) = Pleiodon spekii

Pleiodon moineti (Bourguignat, 1885) = Pleiodon spekii

Pleiodon obtusa (Bourguignat, 1885) = Pleiodon spekii

Pleiodon pulchella (Bourguignat, 1885) = Pleiodon spekii

Pleiodon randabeli (Bourguignat, 1885) = Pleiodon spekii

Pleiodon revoiliana (Bourguignat, 1885) = Pleiodon spekii

Pleiodon (Cameronia) bourguignati (Bourguignat, 1885) = Pleiodon spekii

Pleiodon (Cameronia) giraudi (Bourguignat, 1885) = Pleiodon spekii

+ Cameronia charbonnieri Bourguignat, 1886

+ Cameronia lavigeriana Bourguignat, 1886

+ Cameronia lavigirina Simpson, 1900

+ Cameronia lavigeriei Germain, 1908

Pleiodon (Cameronia) hardeleti Germain, 1906 = Mutela dubia

Pleiodon (Cameronia) hardeleti var. molli Germain, 1906 = Mutela dubia

Pleiodon (Cameronia) landeaui (Bourguignat, 1886) = Pleiodon spekii

Pleiodon (Cameronia) spekii (Woodward, 1859) = Pleiodon spekii

+ Pleiodon spekei ‘Woodward’ of Authors

+ Cameronia gigantea Bourguignat, 1886

+ Cameronia admirabilis Bourguignat, 1886

+ Cameronia coulboisi Bourguignat, 1886

+ Cameronia josseti Bourguignat, 1886

+ Cameronia paradoxa Bourguignat, 1886

+ Cameronia bridouxi Bourguignat, 1886

Pleiodon (Cameronia) tchadiensis Germain, 1906 = Mutela dubia

Pleiodon (Cameronia) vynckei (Bourguignat, 1886) = Pleiodon spekii

+ Cameronia vynckii ‘Bourguignat’ of Authors

Pleiodon (s.s.) diolibanus Bourguignat, 1879 = Pleiodon ovatus

Pleiodon (s.s.) elongatus Bourguignat, 1879 = Pleiodon ovatus

Pleiodon (s.s.) letourneuxianus Bourguignat, 1879 = Pleiodon ovatus

Pleiodon (s.s.) ovatus (Swainson, 1823) = Pleiodon ovatus

+ Iridina exotica Children, 1823

+ Pleiodon macmurtriei Conrad, 1834

+ Iridina valeus Jay, 1850

+ Platiris (Iridina) leaii Lea, 1852

+ Pleiodon splendens Conrad, 1854

+ Iridina splendida Chenu, 1858

Pleiodon (s.s.) ovatus var. pachyodon Bourguignat, 1879 = Pleiodon ovatus

Pleurobema abacus (Haldeman, 1842) = Ptychobranchus fasciolaris

Pleurobema (Group of P. argenteum) amabile (Lea) = Pleurobema pyriforme

Pleurobema (Group of P. argenteum) argenteum (Lea) = Pleurobema oviforme

Pleurobema (Group of P. argenteum) argenteum var. pannosum Simpson = Fusconaia ozarkensis

Pleurobema (Group of P. argenteum) breve (Lea) = Pleurobema oviforme

Pleurobema (Group of P. argenteum) breve var. subellipticum Simpson = Fusconaia ozarkensis

+ Pleurobema brevis var. subilliptica Simpson, 1900

Pleurobema (Group of P. argenteum) brimleyi (S.H. Wright) = Fusconaia masoni

Pleurobema (Group of P. argenteum) conasaugænse (Lea) = Pleurobema oviforme

Pleurobema (Group of P. argenteum) estabrookianum (Lea) = Pleuronaia estabrookiana + Pleurobema oviforme

+ Unio estabrokianus Paetel, 1890

+ Unio striatissimus J.G. Anthony, 1865

Pleurobema (Group of P. argenteum) fassinans (Lea) = Pleuronaia barnesiana

Pleurobema (Group of P. argenteum) fassinans var. rhomboideum Simpson = Pleuronaia barnesiana

Pleurobema (Group of P. argenteum) favosum (Lea) = Pleurobema georgianum

Pleurobema (Group of P. argenteum) georgianum (Lea) = Pleurobema georgianum

Pleurobema (Group of P. argenteum) gibberum (Lea) = Pleuronaia gibber

Pleurobema (Group of P. argenteum) lenticulare (Lea) = Pleuronaia barnesiana

Pleurobema (Group of P. argenteum) litum (Lea) = Pleurobema pyriforme

Pleurobema (Group of P. argenteum) meredithii (Lea) = Pleuronaia barnesiana

Pleurobema (Group of P. argenteum) missouriense Marsh = Pleurobema sintoxia

Pleurobema (Group of P. argenteum) modicum (Lea) = Pleurobema pyriforme

Pleurobema (Group of P. argenteum) patsaligense Simpson = Pleurobema strodeanum

Pleurobema (Group of P. argenteum) planius (Lea) = Pleurobema oviforme

Pleurobema (Group of P. argenteum) pyriforme (Lea) = Pleurobema pyriforme

Pleurobema (Group of P. argenteum) ravenelianum (Lea) = Pleurobema oviforme

+ Unio decisus Küster, 1852

Pleurobema (Group of P. argenteum) simulans (Lea) = Pleurobema perovatum

Pleurobema (Group of P. argenteum) striatulum (Lea) = Fusconaia masoni

Pleurobema (Group of P. argenteum) striatum (Lea) = Pleurobema pyriforme

Pleurobema (Group of P. argenteum) strodeanum (B.H. Wright) = Pleurobema strodeanum

Pleurobema (Group of P. argenteum) subplanum (Conrad) = Fusconaia masoni

Pleurobema (Group of P. argenteum) utriculum (Lea) = Fusconaia masoni

Pleurobema (Group of P. brumbyanum) brumbyanum (Lea) = Ptychobranchus greenii + Pleurobema perovatum

+ Unio brumleyanus Lea, 1841

+ Unio concolor Lea, 1861

Pleurobema (Group of P. brumbyanum) pinkstoni (S.H. Wright) = Pleurobema perovatum

Pleurobema (Group of P. bulbosum) bulbosum (Lea) = Pleurobema pyriforme

Pleurobema (Group of P. bulbosum) harperi (B.H. Wright) = Pleurobema pyriforme

Pleurobema (Group of P. bulbosum) reclusum (B.H. Wright) = Pleurobema pyriforme

Pleurobema (Group of P. clava) acuens (Lea) = Pleurobema oviforme

Pleurobema (Group of P. clava) appressum (Lea) = Fusconaia cuneolus

+ Unio argenteus Sowerby, 1866

Pleurobema (Group of P. clava) barnesianum (Lea) = Pleuronaia barnesiana

+ Unio raveneliensis Reeve, 1864

+ Unio tellicoensis Lea, 1872

Pleurobema (Group of P. clava) bigbyense (Lea) = Pleuronaia barnesiana

Pleurobema (Group of P. clava) bournianum (Lea) = Pleurobema clava

Pleurobema (Group of P. clava) clava (Lamarck) = Pleurobema clava

+ Unio clavus Conrad, 1835

+ Unio patulus Lea, 1829

+ Unio cuneatus Say, 1834

Pleurobema (Group of P. clava) clinchense (Lea) = Pleurobema oviforme

Pleurobema (Group of P. clava) crudum (Lea) = Pleuronaia barnesiana

Pleurobema (Group of P. clava) cuneolus (Lea) = Fusconaia cuneolus

Pleurobema (Group of P. clava) dolabelloides (Lea) = Pleuronaia dolabelloides

+ Unio thorntonii Lea, 1857

+ Unio mooresianus Lea, 1857

+ Unio moorenianus Paetel, 1890

+ Unio recurvatus Lea, 1871

+ Unio circumactus Lea, 1871

+ Unio subglobatus Lea, 1871

Pleurobema (Group of P. clava) edgarianum (Lea) = Fusconaia cor

+ Unio obuncus Lea, 1871

+ Unio andersonensis Lea, 1872

Pleurobema (Group of P. clava) holstonense (Lea) = Pleurobema oviforme + Pleuronaia dolabelloides

+ Unio mundus Lea, 1857

+ Unio mundus Reeve, 1864

+ Unio lawii Lea, 1871

+ Unio pattinoides Lea, 1871

+ Unio bellulus Lea, 1872

Pleurobema (Group of P. clava) lesleyi (Lea) = Pleurobema oviforme

Pleurobema (Group of P. clava) maculatum (Conrad) = Pleuronaia dolabelloides

Pleurobema (Group of P. clava) ornatum (Lea) = Pleuronaia barnesiana

Pleurobema (Group of P. clava) oviforme (Conrad) = Pleurobema oviforme

Pleurobema (Group of P. clava) pudicum (Lea) = Pleuronaia barnesiana

+ Unio subrotundus Sowerby, 1866

+ Unio lyonii Lea, 1865

Pleurobema (Group of P. clava) tesserulæ (Lea) = Pleurobema oviforme

Pleurobema (Group of P. clava) tumescens (Lea) = Pleuronaia barnesiana

+ Unio radiosus Lea, 1871

Pleurobema (Group of P. clava) tuscumbiense (Lea) = Fusconaia cuneolus

+ Unio flavidus Lea, 1872

Pleurobema (Group of P. clava) validum (Lea) = Pleuronaia barnesiana

Pleurobema (Group of P. curtum) curtum (Lea) = Pleurobema curtum

Pleurobema (Group of P. decisum) chattanoogaense (Lea) = Pleurobema decisum

Pleurobema (Group of P. decisum) decisum (Lea) = Pleurobema decisum

+ Unio decisus Küster, 1852

+ Unio scalenius Say, 1834

+ Unio anaticulus Lea, 1861

+ Unio consanguineus Lea, 1861

+ Unio crebrivittatus Lea, 1861

+ Unio medius Reeve, 1864

Pleurobema (Group of P. decisum) interventum (Lea) = Pleurobema perovatum

+ Unio pallidofulvus Lea, 1861

Pleurobema (Group of P. decisum) murrayense (Lea) = Pleurobema stabile

Pleurobema (Group of P. nux) avellana Simpson = Pleurobema rubellum

Pleurobema (Group of P. nux) flavidulum (Lea) = Pleurobema perovatum

Pleurobema (Group of P. nux) furvum (Conrad) = Pleurobema rubellum

Pleurobema (Group of P. nux) hagleri Frierson = Pleurobema rubellum

Pleurobema (Group of P. nux) hanleyanum [sic] (Lea) = Pleurobema hanleyianum

+ Unio hanleyanus Reeve, 1864

Pleurobema (Group of P. nux) johannis (Lea) = Pleurobema perovatum

Pleurobema (Group of P. nux) nux (Lea) = Pleurobema perovatum

+ Unio cinnamomicus Lea, 1861

+ Unio cinnamominus Sowerby, 1868

+ Unio placidus Küster, 1862

Pleurobema (Group of P. nux) rubellum (Conrad) = Pleurobema rubellum + Pleurobema oviforme

+ Unio rudis Conrad, 1837

+ Unio pulvinulus Lea, 1845

Pleurobema (Group of P. nux) verum (Lea) = Pleurobema verum

Pleurobema (Group of P. showalterii) showalterii (Lea) = Pleurobema hartmanianum

Pleurobema (Group of P. swordianum) swordianum (S.H. Wright) = Pleurobema oviforme

Pleurobema (Group of P. troschelianum) altum (Conrad) = Pleurobema fibuloides

+ Unio fibuloides Lea, 1859

Pleurobema (Group of P. troschelianum) cor (Conrad) = Fusconaia cor + Pleurobema clava + Pleurobema fibuloides

+ Unio mytilloides Conrad, 1834

+ Unio crapulus Lea, 1861

+ Unio lewisii Lea, 1861

Pleurobema (Group of P. troschelianum) hartmanianum (Lea) = Pleurobema hartmanianum

Pleurobema (Group of P. troschelianum) instructum (Lea) = Pleurobema verum

Pleurobema (Group of P. troschelianum) irrasum (Lea) = Pleurobema georgianum

Pleurobema (Group of P. troschelianum) nucleopsis (Conrad) = Pleurobema georgianum

Pleurobema (Group of P. troschelianum) perovatum (Conrad) = Pleurobema perovatum

Pleurobema (Group of P. troschelianum) stabile (Lea) = Pleurobema stabile + Pleurobema georgianum

+ Unio medius Lea, 1861

Pleurobema (Group of P. troschelianum) taitianum (Lea) = Pleurobema taitianum

Pleurobema (Group of P. troschelianum) tombigbeanum Frierson = Pleurobema taitianum

Pleurobema (Group of P. troschelianum) troschelianum (Lea) = Pleurobema georgianum

Pleurobema (sec. Plethobasus) æsopus (Green) = Plethobasus cyphyus

+ Unio cyphia Rafinesque, 1820

+ Unio scyphius Küster, 1861

Pleurobema (sec. Plethobasus) cicatricosum (Say) = Plethobasus cicatricosus

+ Unio varicosus Lea, 1831

+ Unio detectus Frierson, 1911

+ Unio cicatricoides Frierson, 1911

Pleurobema (sec. Plethobasus) compertum (Frierson) = Plethobasus cyphyus

Pressidens moellendorffi Haas = Pressidens exanthematicus

Prisodon (Hyriana) ortonii Lea = Prisodon obliquus

Prisodon (s.s.) alatus (Sowerby) = Prisodon syrmatophorus

Prisodon (s.s.) brownianus (Lea) = Prisodon syrmatophorus

Prisodon (s.s.) castelnaudi (Hupe) = Prisodon obliquus

Prisodon (s.s.) complanatus (Hupé) = Prisodon syrmatophorus

+ Hyria syrmatophora Küster, 1856

Prisodon (s.s.) obliquus Schumacher = Prisodon obliquus

+ Hyria avicularis Lamarck, 1819

+ Unio caudatus Wagner, 1827

+ Hyria elongata Swainson, 1841

+ Diplodon furcatum Spix in Wagner, 1827

Prisodon (s.s.) rectus (Sowerby) = Prisodon obliquus

Prisodon (s.s.) syrmatophorus (Meuschen) = Prisodon syrmatophorus

+ Triquetra pectunculus subviridis Klein, 1753

+ Paxyodon ponderosus Schumacher, 1817

+ Hyria avicularis Lamarck, 1819

Pseudavicula johnstoni (Smith) = Prisodontopsis aviculaeformis

Pseudodon ponderosus Preston = Sundadontina ponderosa

Pseudodon solidus Haas = Ptychorhynchus murinum

Pseudodon (s.s.) (Group of P. harmandi) aureus Heude = Pseudobaphia aurea

Pseudodon (s.s.) (Group of P. harmandi) harmandi Crosse and Fischer = Sundadontina harmandi

Pseudodon (s.s.) (Group of P. vondembuschianus) æneolus Drouet = Cosmopseudodon aeneolus

Pseudodon (s.s.) (Group of P. vondembuschianus) cambodjensis (Petit) = Pseudodon vondembuschianus

Pseudodon (s.s.) (Group of P. vondembuschianus) chaperi de Morgan = Sundadontina cumingii

Pseudodon (s.s.) (Group of P. vondembuschianus) cumingii (Lea) = Sundadontina cumingii

Pseudodon (s.s.) (Group of P. vondembuschianus) ellipticus Conrad = Thaiconcha callifera

Pseudodon (s.s.) (Group of P. vondembuschianus) inoscularis (Gould) = Pseudodon inoscularis

Pseudodon (s.s.) (Group of P. vondembuschianus) moreleti Crosse and Fischer = Songkhlanaia moreleti

+ Monocondylea [sic] tumida Deshayes & Jullien, 1874

Pseudodon (s.s.) (Group of P. vondembuschianus) ovalis Morlet = Sundadontina ovalis

Pseudodon (s.s.) (Group of P. vondembuschianus) resupinatus von Martens = Cosmopseudodon resupinatus

Pseudodon (s.s.) (Group of P. vondembuschianus) salwenianus (Gould) = Indopseudodon salwenianus

Pseudodon (s.s.) (Group of P. vondembuschianus) thomsoni Morlet = Songkhlanaia moreleti

Pseudodon (s.s.) (Group of P. vondembuschianus) tumidus (Morelet) = Sundadontina tumida

Pseudodon (s.s.) (Group of P. vondembuschianus) vondembuschianus (Lea) = Pseudodon vondembuschianus

+ Monodontina buschiana Conrad, 1853

+ Unio vonbuschea Sowerby, 1866

+ Alasmodonta crispata Mousson, 1849

+ Monocondyloea planulata Lea, 1859

+ Margaritana fragilis Küster, 1862

+ Monocondylaea rhomboidea Küster, 1862

Pseudodon (s.s.) (Group of P. vondembuschianus) walpolei (Hanley) = Pseudodon walpolei

Pseudodon (s.s.) (Group of P. vondembuschianus) zollingeri (Mousson) = Pseudodon vondembuschianus

Pseudodon (sec. Bineurus) ava (Theobald) = Indopseudodon salwenianus

Pseudodon (sec. Bineurus) bicristatus (Strubell) = Lens contradens

Pseudodon (sec. Bineurus) exilis (Morelet) = Bineurus exilis

Pseudodon (sec. Bineurus) mouhoti (Lea) = Bineurus mouhotii

+ Pseudodon manhoti Conrad, 1865

+ Monocondylaea mouhotiana ‘Lea’ of Authors

Pseudodon (sec. Nasus) nankingensis (Heude) = Simpsonasus nankingensis

+ Monocondylaea nanquingensis Paetel, 1890

Pseudodon (sec. Nasus) secundus Heude = Simpsonasus nankingensis

Pseudodon (sec. Obovalis) loomisi Simpson = Obovalis omiensis

Pseudodon (sec. Suborbiculus) orbicularis (Morelet) = Pseudodon vondembuschianus

Pseudodon (sec. Trigonodon) crebristriatus (Anthony) = Indopseudodon crebristriatus + Pseudodon inoscularis

+ Unio vondembuschii Sowerby, 1868

Pseudodon (sec. Trigonodon) crebristriatus var. curvatus Preston = Indopseudodon crebristriatus

Pseudodon (sec. Trigonodon) peguensis (Anthony) = Indopseudodon salwenianus

Pseudospatha bourguignati (Bourguignat) = Pseudospatha tanganyicensis

Pseudospatha carrei (Putzeys) = Mutela legumen

+ Burtonia leopoldvillensis ‘Putzeys’ of Authors

Pseudospatha livingstonensis [sic] (Bourguignat) = Pseudospatha tanganyicensis

+ Spatha tanganyicensis E.A. Smith, 1880

+ Burtonia livingstoni Germain, 1905

+ Burtonia elongata Bourguignat, 1886

+ Burtonia contorta Bourguignat, 1886

+ Burtonia bridouxi Bourguignat, 1886

Pseudospatha subtriangularis (Bourguignat) = Pseudospatha tanganyicensis

+ Burtonia grandidieriana Bourguignat, 1886

Pseudospatha tanganyicensis (Smith)

+ Burtonia moineti Bourguignat, 1886

+ Burtonia lavigeriana Bourguignat, 1886

+ Burtonia magnifica Bourguignat, 1886

+ Burtonia jouberti Bourguignat, 1886

+ Burtonia foai Mabille, 1901

Ptychobranchus clintonense Simpson = Ptychobranchus occidentalis

Ptychobranchus foremanianum (Lea) = Ptychobranchus foremanianus

+ Unio woodwardius Lea, 1857

+ Unio woodwardianus ‘Lea’ of Authors

+ Unio velatus Conrad, 1854

Ptychobranchus greeni (Conrad) = Ptychobranchus greenii

+ Unio simplex Lea, 1845

+ Unio flavescens Lea, 1845

Ptychobranchus phaseolus (Hildreth) = Ptychobranchus fasciolaris

+ Unio planulatus Lea, 1829

+ Unio fasciolaris ‘Rafinesque’ of Authors

+ Unio compressissimus Lea, 1845

Ptychobranchus phaseolus var. camelus (Lea) = Ptychobranchus fasciolaris

Ptychobranchus subtentum (Say) = Ptychobranchus subtentus

Ptychobranchus trinacrium [sic] (Lea) = Ptychobranchus foremanianus

Ptychorhynchus (Group of P. apicellatum) apicellatum (Heude) = Ptychorhynchus murinum

Ptychorhynchus (Group of P. apicellatum) murinum (Heude) = Ptychorhynchus murinum

+ Unio morinus Paetel, 1890

+ Unio compressus Heude, 1877

+ Ptychorhynchus incertus Simpson, 1900

Ptychorhynchus (Group of P. apicellatum) nieuwenhuisi (Schepman) = Schepmania nieuwenhuisi

+ Unio newenhuisi Simpson, 1900

Ptychorhynchus (Group of P. apicellatum) nieuwenhuisi var. parcesculptum (von Martens) = Schepmania parcesculpta

Ptychorhynchus (Group of P. apicellatum) schomburgianum (Heude) = Ptychorhynchus schomburgianum

Ptychorhynchus (Group of P. pfisteri) lævis Haas = Margaritifera laevis

Ptychorhynchus (Group of P. pfisteri) pfisteri (Heude) = Ptychorhynchus pfisteri

Ptychorhynchus (Group of P. pfisteri) pfisteri var. inspiratum [sic] (Heude) = Ptychorhynchus pfisteri

Ptychorhynchus (Group of P. pfisteri) pfisteri var. mediastinum (Heude) = Ptychorhynchus pfisteri

Quadrula (Discomya) radulosa (Drouet and Chaper) = Discomya radulosa

Quadrula (Discomya) radulosa var. rhomboidea Simpson = Discomya radulosa

Quadrula (Lamprotula) (Group of Q. bazini) bazini (Heude) = Lamprotula bazini

Quadrula (Lamprotula) (Group of Q. leai) caveata (Heude) = Lamprotula caveata

+ Unio contritus Heude, 1881

+ Unio quadrangulosus Heude, 1881

Quadrula (Lamprotula) (Group of Q. leai) cornuum-lunæ (Heude) = Lamprotula cornuumlunae + Lamprotula paschalis

+ Unio montanus Heude, 1875

+ Unio monticola Heude, 1884

+ Unio paschalis Heude, 1883

+ Unio verruculosus Heude, 1883

+ Unio abortivus Heude, 1883

Quadrula (Lamprotula) (Group of Q. leai) cornuum-lunæ var. cinnamomea (Gredler) = Lamprotula cornuumlunae

Quadrula (Lamprotula) (Group of Q. leai) divergens (Benson) = Lamprotula divergens

Quadrula (Lamprotula) (Group of Q. leai) gottschei (von Martens) = Lamprotula leaii

Quadrula (Lamprotula) (Group of Q. leai) leai (Gray) = Lamprotula leaii

+ Unio leeai Hanley, 1843

+ Unio nodulosus Reeve, 1864

Quadrula (Lamprotula) (Group of Q. leai) leai var. leleci (Heude) = Lamprotula leaii

+ Unio richthofeni Martens, 1875

Quadrula (Lamprotula) (Group of Q. leai) leai var. ponderosa Dautzenberg and H. Fischer = Lamprotula leaii

Quadrula (Lamprotula) (Group of Q. leai) leai var. truncatula (Neumayr) = Lamprotula leaii

Quadrula (Lamprotula) (Group of Q. leai) mansuyi Dautzenberg and H. Fischer = Gibbosula crassa

Quadrula (Lamprotula) (Group of Q. leai) ovata Simpson = Acuticosta ovata

+ Unio vestitus Heude, 1883

+ Parreysia hunanensis Haas, 1910

Quadrula (Lamprotula) (Group of Q. leai) scripta (Heude) = Scriptolamprotula scripta

Quadrula (Lamprotula) (Group of Q. messageri) messageri (Bavay and Dautzenberg) = Protunio messageri

Quadrula (Lamprotula) (Group of Q. nodulosa) blaisei Dautzenberg and H. Fischer = Lamprotula blaisei

Quadrula (Lamprotula) (Group of Q. nodulosa) fibrosa (Heude) = Scriptolamprotula fibrosa

+ Unio spurius Heude, 1877

Quadrula (Lamprotula) (Group of Q. nodulosa) liedtkei Rolle = Scriptolamprotula nodulosa

Quadrula (Lamprotula) (Group of Q. nodulosa) microsticta (Heude) = Lamprotula microsticta

+ Unio microstictis Simpson, 1900

Quadrula (Lamprotula) (Group of Q. nodulosa) moreletiana (Heude) = Lamprotula kouangensis

+ Quadrula (Lamprotula) kouangensis Simpson, 1900

Quadrula (Lamprotula) (Group of Q. nodulosa) nodulosa (Wood) = Scriptolamprotula nodulosa + Scriptolamprotula grandidens

+ Unio grandidens Lea, 1862

Quadrula (Lamprotula) (Group of Q. nodulosa) polysticta (Heude) = Scriptolamprotula polysticta

+ Unio polystictoscriptus Heude, 1877

+ Unio scriptopolystictus Heude, 1877

Quadrula (Lamprotula) (Group of Q. nodulosa) salaputium von Martens = Lamprotula salaputium

Quadrula (Lamprotula) (Group of Q. nodulosa) similaris Simpson = Scriptolamprotula polysticta

+ Unio affinis Heude, 1875

Quadrula (Lamprotula) (Group of Q. nodulosa) tientsinensis (Crosse and Debeaux) = Scriptolamprotula tientsinensis

Quadrula (Lamprotula) (Group of Q. nodulosa) tortuosa (Lea) = Scriptolamprotula tortuosa

+ Unio (Lampsilis) subtortus Baird & Adams, 1867

+ Unio retortus Heude, 1883

Quadrula (Lamprotula) (Group of Q. nodulosa) zonata (Heude) = Scriptolamprotula zonata

+ Unio tientsinensis Heude, 1883

Quadrula (Lamprotula) (Group of Q. plumbea) coreana (von Martens) = Scriptolamprotula coreana

Quadrula (Lamprotula) (Group of Q. plumbea) plumbea (Chemnitz) = Lamprotula plumbea

Quadrula (Lamprotula) (Group of Q. rochechouarti) rochechouarti (Heude) = Gibbosula rochechouartii

Quadrula (Lamprotula) (Group of Q. triclava) triclavus (Heude) = Lamprotula triclava

Quadrula (Rotundaria) (Group of Q. ostreata) guatemalensis Simpson = Psoronaias guatemalensis

Quadrula (Rotundaria) (Group of Q. ostreata) ostreata (Morelet) = Psoronaias crocodilorum

Quadrula (Rotundaria) (Group of Q. ostreata) percompressa (von Martens) = Psoronaias crocodilorum

Quadrula (Rotundaria) (Group of Q. ostreata) profunda n. s. = Psoronaias crocodilorum

Quadrula (Rotundaria) (Group of Q. ostreata) quadrata n. s. = Psoronaias crocodilorum

Quadrula (Rotundaria) (Group of Q. ostreata) rudis Simpson = Psoronaias crocodilorum

Quadrula (Rotundaria) (Group of Q. ostreata) usumasintæ (Crosse and Fischer) = Psoronaias crocodilorum

Quadrula (Rotundaria) (Group of Q. tuberculata) granifera (Lea) = Cyclonaias tuberculata

Quadrula (Rotundaria) (Group of Q. tuberculata) granifera var. pusilla Simpson = Cyclonaias tuberculata

Quadrula (Rotundaria) (Group of Q. tuberculata) tuberculata (Rafinesque) = Cyclonaias tuberculata

+ Unio verrucosus Barnes, 1823

+ Unio verrucosus purpureus Hildreth, 1828

+ Unio tuberculosus Valenciennes, 1827

Quadrula (s.s.) (Group of Q. metanevra) cylindrica (Say) = Theliderma cylindrica

+ Unio (Eurynia) solenoides var. cylindrica Rafinesque, 1820

+ Unio naviformis Lamarck, 1819

+ Unio rugosus Chenu, 1862

+ Unio cylindricus var. strigillatus B.H. Wright, 1898

Quadrula (s.s.) (Group of Q. metanevra) intermedia (Conrad) = Theliderma intermedia

+ Unio kleinianus Küster, 1861

Quadrula (s.s.) (Group of Q. metanevra) metanevra Rafinesque = Theliderma metanevra

+ Unio metaneurus ‘Rafinesque’ of Authors

+ Unio nodosus Barnes, 1823

Quadrula (s.s.) (Group of Q. metanevra) metanevra var. wardii (Lea) = Theliderma metanevra

Quadrula (s.s.) (Group of Q. metanevra) stapes (Lea) = Theliderma stapes

+ Unio retusus Say, 1834

+ Unio stegarius Küster, 1861

Quadrula (s.s.) (Group of Q. metanevra) tuberosa (Lea) = Theliderma metanevra

Quadrula (s.s.) (Group of Q. metanevra) tuberosa var. sparsa (Lea) = Theliderma sparsa

Quadrula (sec. Crenodonta) (Group of Q. plicata) boykiniana (Lea) = Megalonaias nervosa

+ Unio baykinianus ‘Lea’ of Authors

Quadrula (sec. Crenodonta) (Group of Q. plicata) digitata (Morelet) = Megalonaias nickliniana

Quadrula (sec. Crenodonta) (Group of Q. plicata) elliottii (Lea) = Amblema elliottii

Quadrula (sec. Crenodonta) (Group of Q. plicata) heros (Say) = Megalonaias nervosa

+ Unio multiplicatus Lea, 1831

+ Unio undulatus Say, 1831

+ Unio eightsii Lea, 1860

+ Unio eighti Paetel, 1890

+ Unio atrocostatus Reeve, 1864

Quadrula (sec. Crenodonta) (Group of Q. plicata) neislerii (Lea) = Amblema neislerii

Quadrula (sec. Crenodonta) (Group of Q. plicata) nickliniana (Lea) = Megalonaias nickliniana

+ Unio nicklianus Küster, 1861

Quadrula (sec. Crenodonta) (Group of Q. plicata) perplicata (Conrad) = Amblema plicata

+ Unio atrocostatus Lea, 1845

+ Unio pearlensis Conrad, 1855

+ Unio perlensis ‘Conrad’ of Authors

+ Unio brazosensis Lea, 1868

+ Unio lincecumii Lea, 1868

+ Unio lincecurei Paetel, 1890

+ Unio pauciplicatus Lea, 1872

Quadrula (sec. Crenodonta) (Group of Q. plicata) perplicata var. quintardii (Cragin) = Amblema plicata

Quadrula (sec. Crenodonta) (Group of Q. plicata) plicata (Say) = Amblema plicata

+ Unio peruviana Lamarck, 1819

+ Unio crassus Barnes, 1823

+ Unio rariplicata Lamarck, 1819

+ Unio gigantea Lea, 1838

+ Unio heros Küster, 1855

Quadrula (sec. Crenodonta) (Group of Q. plicata) plicata var. hippopæa [sic] (Lea) = Amblema plicata

Quadrula (sec. Crenodonta) (Group of Q. plicata) stolli (von Martens) = Megalonaias nickliniana

Quadrula (sec. Crenodonta) (Group of Q. plicata) triumphans (B.H. Wright) = Megalonaias nervosa

Quadrula (sec. Crenodonta) (Group of Q. plicata) undulata (Barnes) = Amblema plicata + Megalonaias nervosa

+ Unio undulatus Hanley, 1843

+ Unio costatus ‘Rafinesque’ of Authors

+ Unio plicatus ‘Say’ of Authors

+ Unio atrocostatus Sowerby, 1868

Quadrula (sec. Crenodonta) (Group of Q. plicata) undulata var. latecostata (Lea) = Amblema plicata

+ Unio laticostatus ‘Lea’ of Authors

Quadrula (sec. Crenodonta) (Group of Q. plicata) undulata var. pilsbryi (Marsh) = Amblema plicata

Quadrula (sec. Crenodonta) (Group of Q. trapezoides) trapezoides (Lea) = Plectomerus dombeyanus

+ Unio crassidens Lamarck, 1819

+ Unio interruptus Say, 1831

+ Unio dombeyana Valenciennes, 1827

Quadrula (sec. Crenodonta) (Group of Q. trapezoides) trapezoides var. pentagonoides Frierson = Plectomerus dombeyanus

Quadrula (sec. Fusconaia) (Group of Q. beadleiana) askewi (Marsh) = Fusconaia askewi

Quadrula (sec. Fusconaia) (Group of Q. beadleiana) beadleiana (Lea) = Pleurobema beadleianum

Quadrula (sec. Fusconaia) (Group of Q. beadleiana) chickasawhensis (Lea) = Pleurobema beadleianum

Quadrula (sec. Fusconaia) (Group of Q. beadleiana) lananensis Frierson = Fusconaia lananensis

Quadrula (sec. Fusconaia) (Group of Q. beadleiana) pumila (Lea) = Fusconaia masoni

Quadrula (sec. Fusconaia) (Group of Q. beadleiana) succissa (Lea) = Pustulosa succissa

+ Unio cacao Lea, 1859

Quadrula (sec. Fusconaia) (Group of Q. beadleiana) wrightii n. s. = Pustulosa succissa

Quadrula (sec. Fusconaia) (Group of Q. glandacea) glandacea (Lea) = Fusconaia cerina

Quadrula (sec. Fusconaia) (Group of Q. subrotunda) andrewsii Marsh = Fusconaia subrotunda

+ Quadrula andrewsae Marsh, 1902

Quadrula (sec. Fusconaia) (Group of Q. subrotunda) beauchampii Marsh = Fusconaia subrotunda

Quadrula (sec. Fusconaia) (Group of Q. subrotunda) bursa-pastoris (B.H. Wright) = Fusconaia subrotunda

Quadrula (sec. Fusconaia) (Group of Q. subrotunda) cuneus (Conrad) = Pleurobema sintoxia

Quadrula (sec. Fusconaia) (Group of Q. subrotunda) ebenus (Lea) = Reginaia ebenus

+ Unio obovalis Say, 1834

+ Unio obliqua ‘Lamarck’ of Authors

+ Unio (s.s.) mytiloides Swainson, 1840

Quadrula (sec. Fusconaia) (Group of Q. subrotunda) globata (Lea) = Fusconaia subrotunda

Quadrula (sec. Fusconaia) (Group of Q. subrotunda) kirtlandiana (Lea) = Fusconaia subrotunda

+ Unio kirklandianus ‘Lea’ of Authors

Quadrula (sec. Fusconaia) (Group of Q. subrotunda) kirtlandiana var. minor Simpson = Fusconaia subrotunda

Quadrula (sec. Fusconaia) (Group of Q. subrotunda) pilaris (Lea) = Fusconaia subrotunda

+ Unio lesueurianus Lea, 1840

Quadrula (sec. Fusconaia) (Group of Q. subrotunda) subrotunda (Lea) = Fusconaia subrotunda

+ Unio brevialis Crouch, 1827

+ Unio personatus Conrad, 1834

+ Unio politus Conrad, 1837

Quadrula (sec. Fusconaia) (Group of Q. undata) castanea n. s. = Fusconaia cerina

Quadrula (sec. Fusconaia) (Group of Q. undata) cerina (Conrad) = Fusconaia cerina

Quadrula (sec. Fusconaia) (Group of Q. undata) chunii (Lea) = Fusconaia chunii

Quadrula (sec. Fusconaia) (Group of Q. undata) chunii var. nasuta n. v. = Fusconaia flava

Quadrula (sec. Fusconaia) (Group of Q. undata) coccinea (Conrad) = Pleurobema sintoxia + Unio crassus

+ Unio coccineus Lea, 1838

+ Unio rubens Menke, 1828

+ Unio catillus Conrad, 1836

+ Unio catilus ‘Conrad’ of Authors

+ Unio gouldianus Ward in Jay, 1839

+ Unio cuneus Call, 1895

Quadrula (sec. Fusconaia) (Group of Q. undata) coccinea var. magnalacustris n. n. = Pleurobema sintoxia

+ Quadrula (sec. Fusconaia) coccinea var. paupercula Simpson, 1900

Quadrula (sec. Fusconaia) (Group of Q. undata) flexuosa Simpson = Fusconaia subrotunda

Quadrula (sec. Fusconaia) (Group of Q. undata) friersoni (B.H. Wright) = Pleurobema riddellii

Quadrula (sec. Fusconaia) (Group of Q. undata) hebetata (Conrad) = Fusconaia flava

Quadrula (sec. Fusconaia) (Group of Q. undata) obliqua (Lamarck) = Pleurobema cordatum + Fusconaia flava

+ Unio mytiloides Short & Eaton, 1831

+ Unio cordatus Conrad, 1836

Quadrula (sec. Fusconaia) (Group of Q. undata) plena (Lea) = Pleurobema plenum

Quadrula (sec. Fusconaia) (Group of Q. undata) pyramidata (Lea) = Pleurobema sintoxia

+ Unio mytiloides Conrad, 1836

+ Unio cardiacea Guérin-Méneville, 1823

+ Unio ruber Conrad, 1853

+ Unio obliquus Wood, 1828

+ Unio mytiloides Bory de St. Vincent, 1827