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

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Publication R.I. Johnson (1978): summary
     publication summary

Complete Citation

Johnson, R.I. 1978. Systematics and zoogeography of Plagiola (= Dysnomia = Epioblasma), an almost extinct genus of freshwater mussels (Bivalvia: Unionidae) from middle North America. Bulletin of the Museum of Comparative Zoology 148: 239-321. Available electronically.

Attributed Nominal Species

Taxonomic Opinions

Plagiola (Epioblasma) flexuosa (Rafinesque, 1820) = Epioblasma flexuosa
+ Unio foliatus Hildreth, 1828
+ Epioblasma biloba Rafinesque, 1831
+ Truncilla lewisii Walker, 1910

Plagiola (Epioblasma) flexuosa (Rafinesque, 1820) = Epioblasma lewisii

Plagiola (Epioblasma) flexuosa (Rafinesque, 1820) = Epioblasma rangiana

Plagiola (Epioblasma) stewardsoni (Lea, 1852) = Epioblasma stewardsonii

Plagiola (Pilea) haysiana (Lea, 1834) = Epioblasma haysiana
+ Unio sowerbianus Lea, 1834

Plagiola (Pilea) obliquata (Rafinesque, 1820) = Epioblasma obliquata
+ Unio sulcatus Lea, 1829
+ Unio ridibundus Say, 1829
+ Unio perplexus Say, 1829
+ Unio flagellatus Say, 1830
+ Unio pectitus Conrad, 1854
+ Unio stewardsonii var. stewensoni de Gregorio, 1914
+ Unio propesulcatus de Gregorio, 1914

Plagiola (Pilea) personata (Say, 1829) = Epioblasma personata
+ Unio pileus Lea, 1831
+ Unio capillaris Lea, 1834

Plagiola (s.s.) arcaeformis (Lea, 1831) = Epioblasma arcaeformis
+ Unio nexus Say, 1831

Plagiola (s.s.) interrupta Rafinesque, 1820 = Epioblasma brevidens
+ Unio brevidens Lea, 1831

Plagiola (s.s.) interrupta Rafinesque, 1820 = Ptychobranchus fasciolaris

Plagiola (s.s.) lenior (Lea, 1840) = Epioblasma lenior
+ Unio lenis Lea, 1840

Plagiola (s.s.) penita (Conrad, 1834) = Epioblasma penita
+ Unio metastriatus Conrad, 1838
+ Unio othcaloogensis Lea, 1857
+ Unio compactus Lea, 1859
+ Unio modicellus Lea, 1859

Plagiola (s.s.) penita (Conrad, 1834) = Epioblasma metastriata

Plagiola (s.s.) penita (Conrad, 1834) = Epioblasma othcaloogensis

Plagiola (Torulosa) biemarginata (Lea, 1857) = Epioblasma biemarginata

Plagiola (Torulosa) capsaeformis (Lea, 1834) = Epioblasma capsaeformis

Plagiola (Torulosa) florentina (Lea, 1857) = Epioblasma walkeri
+ Unio saccatus Küster, 1862
+ Unio sacculus Reeve, 1864
+ Truncilla walkeri Wilson & Clark, 1914
+ Truncilla curtisii Utterback, 1916

Plagiola (Torulosa) florentina (Lea, 1857) = Epioblasma florentina

Plagiola (Torulosa) florentina (Lea, 1857) = Epioblasma curtisii

Plagiola (Torulosa) propinqua (Lea, 1857) = Epioblasma propinqua

Plagiola (Torulosa) sampsoni (Lea, 1862) = Epioblasma sampsonii

Plagiola (Torulosa) torulosa (Rafinesque, 1820) = Epioblasma perobliqua
+ Amblema torulosa var. angulata Rafinesque, 1820
+ Amblema gibbosa Rafinesque, 1820
+ Unio perplexus Lea, 1831
+ Unio gibbosus var. perobliquus Conrad, 1836
+ Unio rangianus Lea, 1838
+ Unio cincinnatiensis Lea, 1840
+ Unio obliquus Potiez & Michaud, 1844
+ Unio phillipsii Reeve, 1864
+ Unio gubernaculum Reeve, 1865
+ Truncilla (Scalenaria) sulcata var. delicata Simpson, 1900

Plagiola (Torulosa) torulosa (Rafinesque, 1820) = Epioblasma torulosa

Plagiola (Torulosa) torulosa (Rafinesque, 1820) = Epioblasma cincinnatiensis

Plagiola (Torulosa) torulosa (Rafinesque, 1820) = Epioblasma rangiana

Plagiola (Torulosa) torulosa (Rafinesque, 1820) = Epioblasma gubernaculum

Plagiola (Torulosa) turgidula (Lea, 1858) = Epioblasma turgidula
+ Unio nux Küster, 1861
+ Unio deviatus Reeve, 1864
+ Truncilla lefevrei Utterback, 1916

Plagiola (Truncillopsis) triquetra (Rafinesque, 1820) = Epioblasma triquetra
+ Unio triangularis Barnes, 1823
+ Unio cuneatus Swainson, 1823
+ Unio formosus Lea, 1831
+ Unio triangularis var. pergibosus de Gregorio, 1914
+ Unio triangularis var. longiusculus de Gregorio, 1914