Lea, I. 1841. Continuation of paper on fresh water and land shells. Proceedings of the American Philosophical Society 2: 30-34. Available electronically.

Lea, 1841. Proc. Amer. Phil. Soc. 2: 30.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 237 [75], pl. 22, fig. 51.
Type(s): HOLOTYPE USNM_84579, Bigby Cr., Tenn.

Lea, 1841. Proc. Amer. Phil. Soc. 2: 31.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 239 [77], pl. 23, fig. 54.
Type(s): HOLOTYPE (MONOTYPY) AMNH_30561, Ohio Canal, 12 mi below Columbus, Franklin Co., Ohio.

Lea, 1841. Proc. Amer. Phil. Soc. 2: 31.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 238 [76], pl. 22, fig. 52.
Type(s): HOLOTYPE USNM_84908, Savannah R., Georgia.
Lea, 1841. Proc. Amer. Phil. Soc. 2: 31.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 236 [74], pl. 22, fig. 50.

Lea, 1841. Proc. Amer. Phil. Soc. 2: 31.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 235 [73], pl. 21, fig. 49.
Type(s): HOLOTYPE USNM_84928, Stump Cr., Ga.

Lea, 1836. Synopsis Fam. Naiades: 52. [nomen nudum]
Lea, 1841. Proc. Amer. Phil. Soc. 2: 31.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 241 [79], pl. 24, fig. 56.
Type(s): HOLOTYPE USNM_86701, Concha Lake, 20 leagues S Vera Cruz near Tlocatalpan, Mexico.

Lea, 1841. Proc. Amer. Phil. Soc. 2: 31.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 240 [78], pl. 23, fig. 55.
Type(s): HOLOTYPE (MONOTYPY) AMNH_30871, Central America.

Lea, 1841. Proc. Amer. Phil. Soc. 2: 30.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 239, pl. 23, fig. 53.
Type(s): HOLOTYPE USNM_84638, Rajah’s Tank, India.

Lea, 1841. Proc. Amer. Phil. Soc. 2: 30.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 233 [71], pl. 21, fig. 47.
Type(s): HOLOTYPE (MONOTYPY) USNM_85072, Sapotal River, near Tlacatalpan, Mexico; 60 mi S of Vera Cruz.

Lea, 1841. Proc. Amer. Phil. Soc. 2: 30.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 234 [72], pl. 21, fig. 48.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_85338 (by Johnson & Baker, 1973: 172), Tecomate River, near Tlacotalpan, [Vera Cruz State], Mexico.