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Unionidae

Margaritiferidae

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Mycetopodidae

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Data last updated
Mon 1 Dec 2025

Publication Conrad (1836): summary

publication summary

Full Citation

Conrad, T.A. 1836. Monography of the Family Unionidae, or naiades of Lamarck, (fresh water bivalve shells) or North America, illustrated by figures drawn on stone from nature 1(5): 41-48, pls. 21-25. Available electronically.

Attributed Nominal Species

Unio caridacea Conrad, 1836 = Pleurobema sintoxia

‘Guérin’ Conrad, 1836. Monogr. Fam. Unionidae 1(5): 41.
(error for Unio cardiacea Guérin-Méneville, 1823)

Unio cordatus Conrad, 1836 = Fusconaia flava

‘Raf.’ Conrad, 1836. Monogr. Fam. Unionidae 1(5): 48, pl. 25.
(misidentified reference to Obovaria cordata Rafinesque, 1820)

Unio declivis Conrad, 1836 = Uniomerus tetralasmus

‘Say’ Conrad, 1836. Monogr. Fam. Unionidae 1(5): 45, pl. 23, fig. 1.
Conrad, 1838. Monogr. Fam. Unionidae 2(11): back cover correginda [as ‘U. sayanus Ward’].
(misidentified reference to Unio declivis Say, 1831)

Unio dilatatus Say, 1834 = Eurynia dilatata

‘Rafinesque’ of Authors.
Say, 1834. Amer. Conch. 6: ??.
Conrad, 1836. Monogr. Fam. Unionidae 1(5): 42, pl. 21.
(reference to Unio (Eurynia) dilatata Rafinesque, 1820)

image of type lot

Unio rivularis Conrad, 1853 = Uniomerus tetralasmus

‘Say’ Conrad, 1836. Monogr. Fam. Unionidae 1(5): 45, pl. 23, fig. 1 [as ‘U. declivis’].
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 257.
Conrad, 1854. Jour. Acad. Nat. Sci. 2(4): 296.
Type(s): HOLOTYPE ANSP_42852, small creek in Greene Co., Ala.

Anodonta virgata Conrad, 1836 = Strophitus undulatus

Conrad, 1836. Monogr. Fam. Unionidae 1(5): back cover.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 263 [as ‘Strophitus virgatus’].

Taxonomic Opinions

Unio blandingianus Lea, 1834 = Uniomerus carolinianus

Unio cordatus (Rafinesque, 1820) = Pleurobema cordatum

Unio declivis Say, 1831 = Uniomerus declivis
+ Unio geometricus Lea, 1834

Unio dilatatus Rafinesque, 1820 = Eurynia dilatata
+ Unio nasuta Lamarck, 1819
+ Unio gibbosus Barnes, 1823
+ Obliquaria (Ellipsaria) cuprea Rafinesque, 1820
+ Obliquaria (Ellipsaria) atroviolacea Rafinesque, 1820

Unio mytiloides (Rafinesque, 1820) = Pleurobema clava
+ Obliquaria rubra Rafinesque, 1820
+ Unio pyramidatus Lea, 1831
+ Unio cardiacea Guérin-Méneville, 1823

Unio mytiloides (Rafinesque, 1820) = Pleurobema sintoxia

Unio personatus Say, 1829 = Epioblasma personata
+ Unio capillaris Lea, 1834

Unio tuberculatus (Rafinesque, 1820) = Cyclonaias tuberculata
+ Unio verrucosus Barnes, 1823
+ Unio tuberculosus Valenciennes, 1827

 
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