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Unionidae

Margaritiferidae

Hyriidae

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Mycetopodidae

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Data last updated
Mon 1 Dec 2025

Publication Conrad (1840): summary

publication summary

Full Citation

Conrad, T.A. 1840. Monography of the Family Unionidae, or naiades of Lamarck, (fresh water bivalve shells) or North America, illustrated by figures drawn on stone from nature 2(12): 103-110, pls. 57-60. Available electronically.

Attributed Nominal Species

image of type lot

Unio collinus Conrad, 1837 = Parvaspina collina

Conrad, 1837. Monogr. Fam. Unionidae 1(8): 65, pl. 36, fig. 2.
Conrad, 1840. Monogr. Fam. Unionidae 2(12): 109, pl. 60, figs. 3.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 247.
Type(s): LECTOTYPE ANSP_41007, Rockbridge Co., Va.

image of type lot

Unio cuneus Conrad, 1838 = Pleurobema sintoxia

Conrad, 1838. Monogr. Fam. Unionidae 2(11): back cover.
Conrad, 1840. Monogr. Fam. Unionidae 2(12): 105, pl. 58, fig. 1.
Type(s): HOLOTYPE (MONOTYPY) ANSP_41645, Arkansas River.

Unio lenis Conrad, 1838 = Lampsilis cardium

Conrad, 1838. Monogr. Fam. Unionidae 2(11): back cover.
Conrad, 1840. Monogr. Fam. Unionidae 2(12): 106, pl. 58, fig. 2.

Unio metastriatus Conrad, 1838 = Epioblasma metastriata

Conrad, 1838. Monogr. Fam. Unionidae 2(11): back cover.
Conrad, 1840. Monogr. Fam. Unionidae 2(12): 104, pl. 57, fig. 2.
Type(s): TYPE LOST ANSP_UNKNOWN, Black Warrior River, near Blount Springs [Blount Co.], Alabama.

Unio planilateris Conrad, 1838 = Elliptio congaraea

Conrad, 1838. Monogr. Fam. Unionidae 2(11): back cover.
Conrad, 1840. Monogr. Fam. Unionidae 2(12): 103, pl. 57, fig. 1.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 255 [as ‘planitaleris’].

Unio saxeus Conrad, 1838 = Leaunio lienosus

Conrad, 1838. Monogr. Fam. Unionidae 2(11): back cover.
Conrad, 1840. Monogr. Fam. Unionidae 2(12): 109, pl. 60, fig. 1.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 257.

image of type lot

Unio trabalis Conrad, 1834 = Venustaconcha trabalis

Conrad, 1834. New Fresh-Water Shells: 27, pl. 3, fig. 5.
Conrad, 1840. Monogr. Fam. Unionidae 2(12): 110, pl. 60, fig. 2.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 259.
Type(s): HOLOTYPE ANSP_56481, Flint River, Ala.

Taxonomic Opinions

Unio collinus Conrad, 1837 = Parvaspina collina

Unio cuneus Conrad, 1838 = Pleurobema sintoxia

Unio heros Say, 1829 = Megalonaias nervosa
+ Unio undulatus Say, 1831
+ Unio multiplicatus Lea, 1831

Unio lenis Conrad, 1838 = Lampsilis cardium

Unio metastriatus Conrad, 1838 = Epioblasma metastriata

Unio planilateris Conrad, 1838 = Elliptio congaraea

Unio saxeus Conrad, 1838 = Leaunio lienosus

Unio trabalis Conrad, 1834 = Venustaconcha trabalis
 
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