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The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

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Publication R.I. Johnson (1970): taxonomic opinions
     publication summary

Complete Citation

Johnson, R.I. 1970. The systematics and zoogeography of the Unionidae (Mollusca: Bivalvia) of the southern Atlantic Slope Region. Bulletin of the Museum of Comparative Zoology 140(6): 263-449. Available electronically.

Taxonomic Opinions

Alasmidonta (Decurambis) marginata Say, 1818 = Alasmidonta marginata

Alasmidonta (Decurambis) varicosa (Lamarck, 1819) = Alasmidonta varicosa
+ Alasmodon corrugata De Kay, 1843
+ Unio rugulosus Wood, 1828

Alasmidonta (Decurambis) varicosa (Lamarck, 1819) = Alasmidonta marginata

Alasmidonta (Pressodonta) calceola (Lea, 1828) = Pressodonta viridis

Alasmidonta (Prolasmidonta) heterodon (Lea, 1829) = Prolasmidonta heterodon

Alasmidonta (s.s.) arcula (Lea, 1838) = Alasmidonta arcula

Alasmidonta (s.s.) triangulata (Lea, 1858) = Alasmidonta triangulata

Alasmidonta (s.s.) undulata (Say, 1817) = Alasmidonta undulata
+ Unio glabratus Sowerby & Sowerby, 1821
+ Alasmodonta sculptilis Say, 1829
+ Unio hians Valenciennes, 1827
+ Uniopsis radiata Swainson, 1840
+ Uniopsis mytiloides Swainson, 1840
+ Unio swainsoni Sowerby, 1868

Alasmidonta (s.s.) wrightiana (Walker, 1901) = Alasmidonta wrightiana

Anodonta (Pyganodon) cataracta cataracta Say, 1817 = Pyganodon lacustris
+ Anodonta fluviatilis Bosc, 1801
+ Anodonta marginata Say, 1817
+ Anodonta teres Conrad, 1834
+ Anodonta excurvata De Kay, 1843
+ Anodonta virgulata Lea, 1857
+ Anodonta lacustris Lea, 1857
+ Anodonta hallenbeckii Lea, 1858
+ Anodonta gesnerii Lea, 1858
+ Anodonta dariensis Lea, 1858
+ Anodonta williamsii Lea, 1862
+ Anodonta tryonii Lea, 1862
+ Anodonta dolearis Lea, 1863
+ Anodonta doliaris Lea, 1863

Anodonta (Pyganodon) cataracta cataracta Say, 1817 = Pyganodon grandis

Anodonta (Pyganodon) cataracta cataracta Say, 1817 = Pyganodon cataracta

Anodonta (Pyganodon) cataracta cataracta Say, 1817 = Pseudodontoideus connasaugaensis

Anodonta (Pyganodon) cataracta fragilis Lamarck, 1819 = Pyganodon fragilis

Anodonta (Pyganodon) gibbosa Say, 1824 = Pyganodon gibbosa

Anodonta (Pyganodon) implicata Say, 1829 = Utterbackiana implicata
+ Anodonta newtonensis Lea, 1838
+ Anodonta housatonica Gould, 1848

Anodonta (Utterbackia) couperiana Lea, 1840 = Utterbackiana couperiana
+ Anodonta cowperiana Lea, 1840
+ Anodonta dunlapiana Lea, 1842

Anodonta (Utterbackia) imbecilis [sic] Say, 1829 = Potamilus ohiensis
+ Anodonta (Lastena) ohiensis Rafinesque, 1820
+ Anodonta incerta Lea, 1834
+ Anodon horda Gould, 1855
+ Anodonta henryana Lea, 1857
+ Utterbackia imbecillis fusca F.C. Baker, 1927

Anodonta (Utterbackia) imbecilis [sic] Say, 1829 = Utterbackia imbecillis

Carunculina pulla (Conrad, 1838) = Toxolasma pullus
+ Carunculina patrickae Bates, 1966

Elliptio (Canthyria) spinosa (Lea, 1836) = Elliptio spinosa

Elliptio (s.s.) arctata (Conrad, 1834) = Elliptio arctata
+ Unio strigosus Lea, 1840
+ Unio tortivus Lea, 1840
+ Unio lazarus Lea, 1852
+ Unio perstriatus Lea, 1852
+ Unio gracilentus Lea, 1857
+ Unio perlatus Lea, 1863

Elliptio (s.s.) complanata (Lightfoot, 1786) = Elliptio roanokensis
+ 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 virginiana Lamarck, 1819
+ Unio (Elliptio) aurata Rafinesque, 1820
+ Unio fluviatilis Green, 1827
+ Unio rigidus Wood, 1828
+ Unio griffithianus Lea, 1834
83 more...

Elliptio (s.s.) complanata (Lightfoot, 1786) = Elliptio cistellaeformis

Elliptio (s.s.) complanata (Lightfoot, 1786) = Elliptio fumata

Elliptio (s.s.) complanata (Lightfoot, 1786) = Elliptio icterina

Elliptio (s.s.) complanata (Lightfoot, 1786) = Elliptio pullata

Elliptio (s.s.) complanata (Lightfoot, 1786) = Elliptio arca

Elliptio (s.s.) complanata (Lightfoot, 1786) = Elliptio complanata

Elliptio (s.s.) congaraea (Lea, 1831) = Elliptio congaraea
+ Unio fulvus Lea, 1834
+ Unio lecontianus Lea, 1838
+ Unio planilateris Conrad, 1838
+ Unio pusillus Lea, 1840
+ Unio sordidus Lea, 1852
+ Unio gibbesianus Lea, 1852
+ Unio rufusculus Lea, 1852
+ Unio forbesianus Lea, 1852
+ Unio buxeus Lea, 1852
+ Unio moussonianus Lea, 1852
+ Unio corvus Lea, 1859
+ Unio vestitus Lea, 1861
+ Unio dorsatus Lea, 1868
+ Unio strumosus Lea, 1872

Elliptio (s.s.) crassidens crassidens (Lamarck, 1819) = Elliptio crassidens
+ Unio (Elliptio) nigra Rafinesque, 1820
+ Unio cuneatus Barnes, 1823
+ Unio incrassatus Lea, 1840
+ Unio discus Sowerby, 1868
+ Unio lehmanii S.H. Wright, 1897
+ Unio danielsii B.H. Wright, 1899
+ Unio polymorphus B.H. Wright, 1899
+ Elliptio pachyodon Olson & Harbison, 1953

Elliptio (s.s.) crassidens crassidens (Lamarck, 1819) = Elliptio monroensis

Elliptio (s.s.) crassidens crassidens (Lamarck, 1819) = Elliptio occulta

Elliptio (s.s.) crassidens downiei (Lea, 1858) = Elliptio downiei
+ Unio satillaensis Lea, 1858
+ Unio spissus Lea, 1859

Elliptio (s.s.) dariensis (Lea, 1842) = Elliptio monroensis
+ Unio monroensis Lea, 1843
+ Unio websterii B.H. Wright, 1888
+ Unio hartwrightii B.H. Wright, 1896

Elliptio (s.s.) dariensis (Lea, 1842) = Elliptio dariensis

Elliptio (s.s.) dilatata (Rafinesque, 1820) = Eurynia dilatata
+ Obliquaria (Ellipsaria) cuprea Rafinesque, 1820

Elliptio (s.s.) fraterna (Lea, 1852) = Elliptio monroensis
+ Unio anthonyi Lea, 1861
+ Elliptio mcmichaeli Clench & Turner, 1956

Elliptio (s.s.) fraterna (Lea, 1852) = Elliptio fraterna

Elliptio (s.s.) fraterna (Lea, 1852) = Elliptio mcmichaeli

Elliptio (s.s.) hopetonensis (Lea, 1838) = Elliptio hopetonensis
+ Unio inusitatis Lea, 1859

Elliptio (s.s.) icterina (Conrad, 1834) = Elliptio jayensis
+ Unio raveneli Conrad, 1834
+ Margarita (Unio) watereensis Lea, 1836
+ Unio confertus Lea, 1834
+ Unio lugubris Lea, 1838
+ Unio geddingsianus Lea, 1840
+ Unio fuscatus Lea, 1843
+ Unio occultus Lea, 1843
+ Unio limatulus Conrad, 1849
+ Unio tuomeyi Lea, 1852
+ Unio whiteianus Lea, 1852
+ Unio barrattii Lea, 1852
+ Unio pullatis Lea, 1856
+ Unio pullatus Lea, 1856
+ Unio coruscus Gould, 1856
+ Unio micans Lea, 1857
30 more...

Elliptio (s.s.) icterina (Conrad, 1834) = Elliptio occulta

Elliptio (s.s.) icterina (Conrad, 1834) = Elliptio arctata

Elliptio (s.s.) icterina (Conrad, 1834) = Elliptio icterina

Elliptio (s.s.) icterina (Conrad, 1834) = Elliptio pullata

Elliptio (s.s.) lanceolata (Lea, 1828) = Elliptio lanceolata
+ Unio angustatus Lea, 1831
+ Unio productus Conrad, 1836
+ Unio fisherianus Lea, 1838
+ Unio folliculatus Lea, 1838
+ Unio duttonianus Lea, 1841
+ Unio sagittiformis Lea, 1852
+ Unio rostraeformis Lea, 1856
+ Unio rostriformis Lea, 1856
+ Unio extensus Lea, 1857
+ Unio emmonsii Lea, 1857
+ Unio naviculoides Lea, 1857
+ Unio maconensis Lea, 1857
+ Unio hazlehurstianus Lea, 1858
+ Unio viridulus Lea, 1863
+ Unio nasutidus Lea, 1863
6 more...

Elliptio (s.s.) lanceolata (Lea, 1828) = Elliptio angustata

Elliptio (s.s.) lanceolata (Lea, 1828) = Elliptio fisheriana

Elliptio (s.s.) lanceolata (Lea, 1828) = Elliptio folliculata

Elliptio (s.s.) lanceolata (Lea, 1828) = Elliptio producta

Elliptio (s.s.) lanceolata (Lea, 1828) = Elliptio pullata

Elliptio (s.s.) shepardiana (Lea, 1834) = Elliptio shepardiana

Elliptio (s.s.) waccamawensis (Lea, 1863) = Elliptio congaraea

Lampsilis (s.s.) cariosa (Say, 1817) = Atlanticoncha ochracea
+ Lampsilis pallida Rafinesque, 1820
+ Unio ovata Valenciennes, 1827
+ Unio crocatus Lea, 1841
+ Unio oratus Conrad, 1849

Lampsilis (s.s.) cariosa (Say, 1817) = Lampsilis cariosa

Lampsilis (s.s.) dolabraeformis (Lea, 1838) = Lampsilis dolabraeformis

Lampsilis (s.s.) ochracea (Say, 1817) = Atlanticoncha ochracea
+ Mytilus fluviatilis Gmelin, 1791
+ Lampsilis rosea Rafinesque, 1820
+ Unio rosaceus Conrad, 1849

Lampsilis (s.s.) ovata (Say, 1817) = Lampsilis ovata
+ Lampsilis cardium Rafinesque, 1820
+ Unio ventricosus Barnes, 1823
+ Unio occidens Lea, 1829
+ Unio subovatus Lea, 1831
+ Unio lenis Conrad, 1838
+ Unio canadensis Lea, 1857
+ Unio latissimus Sowerby, 1868
+ Lampsilis (s.s.) ventricosa var. lurida Simpson, 1914
+ Lampsilis ventricosa cohongoronta Ortmann, 1912
+ Lampsilis ventricosa winnebagoensis F.C. Baker, 1928
+ Lampsilis ventricosa perglobosa F.C. Baker, 1928

Lampsilis (s.s.) ovata (Say, 1817) = Lampsilis cardium

Lampsilis (s.s.) radiata radiata (Gmelin, 1791) = Atlanticoncha ochracea
+ Unio luteola Lamarck, 1819
+ Unio lineata Bory de St. Vincent, 1827
+ Unio tenebrosus Conrad, 1834
+ Unio melinus Conrad, 1838
+ Unio boydianus Lea, 1840
+ Unio rosaceus De Kay, 1843
+ Unio oblongatus Wood, 1828
+ Unio elongata Goodrich, 1859
+ Unio obliquiradiatus Reeve, 1865
+ Unio conspicuus Lea, 1872
+ Unio virginana Reeve, 1865
+ Lampsilis radiata oneidensis F.C. Baker, 1916
+ Unio virginea Frierson, 1927

Lampsilis (s.s.) radiata radiata (Gmelin, 1791) = Lampsilis radiata

Lampsilis (s.s.) radiata radiata (Gmelin, 1791) = Lampsilis siliquoidea

Lampsilis (s.s.) splendida (Lea, 1838) = Lampsilis splendida
+ Unio regularis Sowerby, 1866

Lasmigona (Platynaias) subviridis (Conrad, 1835) = Platynaias subviridis
+ Unio viridis Conrad, 1835
+ Unio tappanianus Lea, 1838
+ Unio hyalinus Lea, 1845
+ Unio decoratus Lea, 1852
+ Unio pygmaeus Lea, 1852
+ Unio charlottensis Lea, 1863
+ Unio pertenuis Lea, 1863
+ Unio insolidus Lea, 1872

Lasmigona (Platynaias) subviridis (Conrad, 1835) = Platynaias decorata

Lasmigona (s.s.) costata (Rafinesque, 1820) = Lasmigona costata

Ligumia nasuta (Say, 1817) = Sagittunio nasutus
+ Obliquaria (Ellipsaria) attenuata Rafinesque, 1820
+ Unio rostrata Valenciennes, 1827
+ Unio vaughanianus Sowerby, 1868
+ Unio fisherianus Küster, 1861

Pleurobema (Lexingtonia) collina Conrad, 1836 = Parvaspina collina

Pleurobema (Lexingtonia) masoni (Conrad, 1834) = Fusconaia masoni
+ Unio subplanus Conrad, 1837
+ Unio pumilus Lea, 1838
+ Unio merus Lea, 1852
+ Unio striatulus Lea, 1857
+ Unio castus Lea, 1860
+ Unio brimleyi S.H. Wright, 1897

Strophitus undulatus (Say, 1817)
+ Anodonta pensylvanica Lamarck, 1819
+ Anodon rugosus Swainson, 1822
+ Anodon areolatus Swainson, 1829
+ Alasmodonta edentula Say, 1829
+ Anodonta virgata Conrad, 1836
+ Anodonta pavonia Lea, 1838
+ Anodonta wardiana Lea, 1838
+ Anodon unadilla De Kay, 1843
+ Anodonta tetragona Lea, 1845
+ Anodonta arkansensis Lea, 1852
+ Anodonta shaefferiana Lea, 1852
+ Alasmodon rhombica J.G. Anthony, 1865
+ Anodon papyracea J.G. Anthony, 1865
+ Anodon annulatus Sowerby, 1867
+ Anodon quadriplicatus Sowerby, 1870
5 more...

Uniomerus tetralasmus (Say, 1831) = Elliptio jayensis
+ Unio obesus Lea, 1831
+ Unio declivis Say, 1831
+ Unio camptodon Say, 1832
+ Unio geometricus Lea, 1834
+ Unio blandingianus Lea, 1834
+ Unio declivis Conrad, 1836
+ Unio excultus Conrad, 1838
+ Unio sayii Tappan, 1839
+ Unio parallelus Conrad, 1841
+ Unio porrectus Conrad, 1854
+ Unio buddianus Lea, 1843
+ Unio symmetricus Lea, 1845
+ Unio paludicolus Gould, 1845
+ Unio ineptus Lea, 1852
+ Unio hebes Lea, 1852
14 more...

Uniomerus tetralasmus (Say, 1831)

Uniomerus tetralasmus (Say, 1831) = Uniomerus declivis

Uniomerus tetralasmus (Say, 1831) = Uniomerus columbensis

Uniomerus tetralasmus (Say, 1831) = Uniomerus carolinianus

Uniomerus tetralasmus (Say, 1831) = Elliptio fumata

Villosa constricta (Conrad, 1838) = Venustaconcha constricta
+ Unio genthii Lea, 1857

Villosa delumbis (Conrad, 1834) = Sagittunio vaughanianus
+ Unio tenerus Ravenel, 1834
+ Unio vaughanianus Lea, 1838
+ Unio ogeecheensis Conrad, 1849
+ Unio concavus Lea, 1852
+ Unio proximus Lea, 1852
+ Unio contiguus Lea, 1861
+ Unio genuinus Lea, 1868

Villosa delumbis (Conrad, 1834) = Leaunio lienosus

Villosa delumbis (Conrad, 1834)

Villosa vibex (Conrad, 1834) = Leaunio lienosus
+ Unio modioliformis Lea, 1834
+ Unio exiguus Lea, 1840
+ Unio stagnalis Conrad, 1849
+ Unio prevostianus Lea, 1852
+ Unio nigrinus Lea, 1852
+ Unio gracilior Lea, 1856
+ Unio rutilans Lea, 1856
+ Unio subellipsis Lea, 1856
+ Unio sudus Lea, 1857
+ Unio obfuscus Lea, 1857
+ Unio dispar Lea, 1860
+ Unio averellii B.H. Wright, 1888

Villosa vibex (Conrad, 1834)

Villosa villosa (Wright, B.H., 1898)