Lea, I. 1831. Observations on the Naïades, and descriptions of new species of that and other families. Transactions of the American Philosophical Society 4 [O. 1]: 63-121, pls. 3-18 (Obs. 1: 73-131). Available electronically.
Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 89 [99], pl. 10, fig. 18.
Type(s): IDIOTYPE MCZ_178887, Alabama River.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 114 [124], pl. 17, fig. 43.
Type(s): HOLOTYPE USNM_85896, Cooper R., S. Carolina.
Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 81 [91], pl. 8, fig. 11.
Type(s): TYPE LOST XXX_UNKNOWN, Mississippi river,... Alabama river, … Ohio river.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 116, pl. 17, fig. 44 [as ‘arcæformis’].
Type(s): IDIOTYPE USNM_84422, Florence, Alabama.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 85 [95], pl. 9, fig. 15.
Type(s): UNKNOWN USNM_84212, Claiborne, Ala. R., Alabama.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 71 [81], pl. 5, fig. 3.
Type(s): HOLOTYPE USNM_84174, Cincinnati, Ohio.
Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 98, pl. 11, fig. 19.
Type(s): SYNTYPES ANSP_41876, River Hoogley [about 100 mi above Calcutta] Hindostan.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 75, pl. 6, fig. 6.
Type(s): IDIOTYPE USNM_85349A, Nashville, Tenn.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 95 [105], pl. 13, fig. 25 [as ‘cæruleus’].
Type(s): HOLOTYPE USNM_85193, Bengal, India.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 91 [101], pl. 11, fig. 21.
Type(s): HOLOTYPE USNM_84824, Claiborne, Alabama.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 72 [82], pl. 6, fig. 4 [as ‘congaræus’].
Type(s): HOLOTYPE USNM_85693, Congaree R., Columbia, S.C.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 94, pl. 12, fig. 24.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_86121 (by R.I. Johnson, 1974: 40), Mexico.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 92 [102], pl. 12, fig. 23.
Type(s): HOLOTYPE USNM_84723, Claiborne, Ala.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 84 [94], pl. 9, fig. 14.
Type(s): HOLOTYPE USNM_85792, Cincinnati, Ohio.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 83 [93], pl. 9, fig. 13.
Type(s): HOLOTYPE USNM_84449, Cincinnati, Ohio.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 86, pl. 10, fig. 16.
Type(s): FIGURED SYNTYPE USNM_85270A, Ohio R.
Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 111, pl. 16, fig. 41.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 82, pl. 8, fig. 12.
Type(s): HOLOTYPE USNM_85312, New Harmony, Ind.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 97, pl. 13, fig. 27.
Type(s): HOLOTYPE (MONOTYPY) USNM_85731, Gibralter.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 99 [109], pl. 14, fig. 28.
(renamed Unio alabamensis Conrad, 1834)
Type(s): HOLOTYPE USNM_83909, Claiborne, Ala.
Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 80, pl. 8, fig. 10.
Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 70, pl. 4, fig. 2.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 91, pl. 12, fig. 22.
Type(s): POSSIBLE SYNTYPE USNM_84114, R. Joanes, near Bahia, Brazil.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 96, pl. 13, fig. 26.
Type(s): HOLOTYPE USNM_85366, Little Ogeechee, Georgia.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 108, pl. 16, fig. 38.
Type(s): SYNTYPES ANSP_41742, Bengal.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 73, pl. 6, fig. 5.
(renamed Odatelia radiata Rafinesque, 1832)
Type(s): HOLOTYPE USNM_86271, Cincinnati, (Ohio R.), Ohio.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 112, pl. 17, fig. 42.
(homonym of Unio perplexus Say, 1829)
Type(s): SYNTYPE USNM_84324, Cincinnati, Ohio.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 119, pl. 18, fig. 47.
Type(s): FIGURED SYNTYPE USNM_84602A, Cincinnati, Ohio.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 79 [89], pl. 7, fig. 9.
Type(s): SYNTYPE USNM_84200, Cincinnati, Ohio.
Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 76 [86], pl. 7, fig. 7.
Type(s): SYNTYPES ANSP_43058, Ohio.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 109 [119], pl. 16, fig. 39.
Type(s): SYNTYPES ANSP_41726, Ohio River.
Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 87, pl. 10, fig. 17.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 77, pl. 7, fig. 8.
Type(s): HOLOTYPE (MONOTYPY) USNM_84218, Alabama R., Ala.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 118 [128], pl. 18, fig. 46.
Type(s): HOLOTYPE USNM_84509, Cincinnati, Ohio.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 117 [127], pl. 18, fig. 45.
Type(s): HOLOTYPE USNM_85832, Cincinnati, Ohio.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 69 [79], pl. 3, fig. 1.
Type(s): FIGURED SYNTYPE USNM_84103, Lake St. Joseph, Mis.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 110 [120], pl. 16, fig. 40.
Type(s): HOLOTYPE USNM_84629, Louisville, KY.

Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 90 [100], pl. 11, fig. 20.
(homonym of Unio varicosa Lamarck, 1819)
Type(s): HOLOTYPE USNM_84320, Cincinnati, Ohio.