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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 Lea (1829): attributed nominal species
     publication summary

Complete Citation

Lea, I. 1829. Description of a new genus of the family of naïades, including eight species, four of which are new; also the description of eleven new species of the genus Unio from the rivers of the United States: with observations on some of the characters of the Naïades. Transactions of the American Philosophical Society 3 [O. 1]: 403-457, pls. 7-14 (Obs. 1: 17-71). Available electronically.

Attributed Nominal Species

Symphynota bialata Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 445, pl. 14, fig. 24 [as ‘bi-alata’].
(renamed Dianisotis chinensis Rafinesque, 1831)
Type(s): HOLOTYPE USNM_86356A, Canton, China.

Symphynota compressa Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 450, pl. 12, fig. 22.
(renamed Margaron (Unio) pressus Lea, 1852)
Type(s): LECTOTYPE USNM_83961, Yellow Cr., Cincinnati, Ohio.

Symphynota laevissima Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 444 [58], pl. 13, fig. 23 [as ‘lævissima’].
Type(s): HOLOTYPE USNM_83938, Cincinnati, Ohio.

Symphynota tenuissima Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 453, pl. 11, fig. 21.
Type(s): PARATYPE USNM_86052, Cincinnati, Ohio.

Unio alasmodontina Lea, 1829
‘Barnes’ Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 451.
(intro'd as syn of Symphynota compressa Lea, 1829)

Unio ater Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 426, pl. 7, fig. 9.
(homonym of Unio ater Nilsson, 1822; renamed Unio lugubris Say, 1832)
Type(s): SYNTYPE USNM_86108, Port Gibson, Miss.

Unio circulus Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 433 [47], pl. 9, fig. 14.
Type(s): UNKNOWN USNM_85734, Cincinatti, Ohio.

Unio heterodon Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 428, pl. 8, fig. 11.
Type(s): SYNTYPES ANSP_41004, Schuylkill [River] and Derby [sic] Creek, Pennsylvania.

Unio iris Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 439, pl. 11, fig. 18.
Type(s): SYNTYPES USNM_86035, Cincinnati, Ohio.

Unio metanever Lea, 1829
‘Rafinesque’ of Authors.
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 418.
Jay, 1835. Cat. Rec. Shells: 17.
Hanley, 1843. Illustr. Descr. Cat. Rec. Bivalve Shells: 179.
Agassiz, 1852. Arch. Naturg. 18(1): 48.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 252.
Mörch, 1853. Cat. Conch. Yoldi 2: 44.
Lewis, 1871. Amer. J. Conch. 6: 218.
Lea, 1871. Proc. Acad. Nat. Sci. 23: 15 [as ‘Margarita (Unio) metanever’].
(reference to Obliquaria (Quadrula) metanevra Rafinesque, 1820)

Unio multiradiatus Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 434 [48], pl. 9, fig. 15 [as ‘multi-radiatus’].
Type(s): HOLOTYPE USNM_84930, Cincinnati, Ohio.

Unio occidens Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 435, pl. 10, fig. 16.
Type(s): HOLOTYPE USNM_84866, Cincinnati, Ohio.

Unio patulus Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 441, pl. 12, fig. 20.
Type(s): HOLOTYPE USNM_84760, Ohio ?

Unio planulatus Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 431 [45], pl. 9, fig. 13.
Type(s): HOLOTYPE USNM_86059, Cincinnati, Ohio.

Unio rubiginosus Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 427 [41], pl. 8, fig. 10.
Type(s): HOLOTYPE USNM_84556, Cincinnati, Ohio.

Unio securis Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 437 [51], pl. 11, fig. 17.
Type(s): HOLOTYPE USNM_84475, Cincinnati, Ohio.

Unio sulcatus Lea, 1829
Lea, 1828. Trans. Amer. Phil. Soc. 3 [O. 1]: 269 [as ‘Unio ellipsis var. a’].
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 430, pl. 8, fig. 12.
Say, 1830. Amer. Conch. 1: pl. 5, lower figs.
Type(s): SYNTYPES USNM_84803, Ohio.

Unio zigzag Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 440, pl. 12, fig. 19 [as ‘zig-zag’].
Type(s): FIGURED SYNTYPE USNM_84459, Cincinnati, Ohio.

 
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