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Page last updated
Thu 17 July 2025

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

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Publication Conrad (1840): summary
     publication summary

Complete 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

Unio collinus Conrad, 1837
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.

Unio cuneus Conrad, 1838
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
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
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
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
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.

Unio trabalis Conrad, 1834
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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