Say. 1830. American Conchology, or Descriptions of the Shells of North America 1: pls. 1-10. Available electronically.
Say, 1830. Amer. Conch. 1: [no pagination].
Say, 1858. [in] Binney, Compl. Writings T. Say: 154.
(intro'd as syn of Unio sulcatus Lea, 1829)
Say, 1829. New Harm. Dissem. 2(19): 293.
Say, 1830. Amer. Conch. 1: pl. 6.
Say, 1858. [in] Binney, Compl. Writings T. Say: 155.
Say, 1829. New Harm. Dissem. 2(19): 309.
Say, 1830. Amer. Conch. 1: pl. 5.
Say, 1858. [in] Binney, Compl. Writings T. Say: 155, 225.
Say, 1829. New Harm. Dissem. 2(20): 308, sp. 6.
Say, 1830. Amer. Conch. 1: pl. 5, upper fig.
Say, 1858. [in] Binney, Compl. Writings T. Say: 131, 154.

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.
Barnes, 1823. Amer. J. Sci. 6 (1-2): 272, pl. 13, figs. 17a-b.
Say, 1830. Amer. Conch. 1: pl. 4.