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Thu 3 September 2025

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

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Publication Conrad (1836): summary
     publication summary

Complete 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(3): 25-32, pls. 11-15. Available electronically.

Attributed Nominal Species

Unio catillus Conrad, 1836
Conrad, 1836. Monogr. Fam. Unionidae 1(3): 30, pl. 13, fig. 2.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 246.

Unio coccineus Conrad, 1836
‘Hildreth’ Conrad, 1836. Monogr. Fam. Unionidae 1(3): 29, pl. 13, fig. 1.
‘Hildreth’ Conrad, 1853. Proc. Acad. Nat. Sci. 6: 247.
Type(s): FIGURED SYNTYPE USNM_85848, Columbus, Ohio.

Unio congaraeus Conrad, 1836
‘Lea’ Conrad, 1836. Monogr. Fam. Unionidae 1(3): 27, pl. 12, fig. 1 [as ‘congaræus’].
(reference to Unio congaraeus Lea, 1831)

Unio fasciolus Say, 1834
‘Rafinesque’ of Authors.
Say, 1834. Amer. Conch. 6: ??.
Conrad, 1836. Monogr. Fam. Unionidae 1(3): 26, pl. 11, fig. 2.
(reference to Lampsilis fasciola Rafinesque, 1820)

Unio masoni Conrad, 1834
Conrad, 1834. New Fresh-Water Shells: 34, pl. 5, fig. 2.
Conrad, 1836. Monogr. Fam. Unionidae 1(3): 28, pl. 12, fig. 2.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 252.

Unio pectorosus Conrad, 1834
Conrad, 1834. New Fresh-Water Shells: 37, pl. 6, fig. 1.
Conrad, 1836. Monogr. Fam. Unionidae 1(3): 25, pl. 11, fig. 1.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 254.

Unio productus Conrad, 1836
Conrad, 1836. Monogr. Fam. Unionidae 1(3): 31, pl. 14, fig. 1.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 255.
Type(s): HOLOTYPE ANSP_41397, [no locality available - North America].

Unio rectus Conrad, 1836
Conrad, 1836. Monogr. Fam. Unionidae 1(3): 33, pl. 55.
(reference to Unio recta Lamarck, 1819)

Taxonomic Opinions

Unio catillus Conrad, 1836 = Pleurobema sintoxia

Unio coccineus ‘Hildreth’ Conrad, 1836 = Pleurobema sintoxia

Unio congaræus Lea, 1831 = Elliptio congaraea

Unio fasciolus (Rafinesque, 1820) = Lampsilis fasciola
+ Unio multiradiatus Lea, 1829

Unio lanceolatus Lea, 1828 = Elliptio lanceolata

Unio masoni Conrad, 1834 = Fusconaia masoni

Unio pectorosus Conrad, 1834 = Ortmanniana pectorosa
+ Unio perdix Lea, 1834

Unio productus Conrad, 1836 = Elliptio producta

Unio rectus Lamarck, 1819 = Ligumia recta
+ Unio (Eurynia) latissima Rafinesque, 1820
+ Unio praelongus Barnes, 1823

 
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