Lea, I. 1857. Descriptions of exotic genera and species of the family Unionidæ [New fresh water and land shells]. Journal of the Academy of Natural Sciences 3 [O. 6]: 289-321, pls. 21-33 (Obs. 6, part 1: 9-41). Available electronically.
Lea, 1856. Proc. Acad. Nat. Sci. 8: 79.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 317 [37].
(homonym of Duméril & Bibron, 1841 [Amphib.]; renamed Iheringella Pilsbry, 1893)
Type species: Plagiodon isocardioides Lea, 1857 (monotypy) = Iheringella isocardiodes

Lea, 1856. Proc. Acad. Nat. Sci. 8: 94.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 300 [20], pl. 27, fig. 15.
Type(s): LECTOTYPE USNM_85233, C. Good Hope.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 95.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 307 [27], pl. 29, fig. 22.
Type(s): HOLOTYPE USNM_86124, “Mocha Arabia” Prob. S. America.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 103.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 313 [33], pl. 30, fig. 28.
Type(s): HOLOTYPE USNM_84909, Tackrong R., at Korat, Cambodia.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 103.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 314 [34], pl. 31, fig. 29.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_84845 (by R.I. Johnson, 1974: 32), Colorado R., Texas.

Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 319 [39], pl. 33, fig. 33.
(new name for Triquetra lanceolata Lea, 1856)
Type(s): HOLOTYPE (MONOTYPY) USNM_83884, Shanghai, China.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 94.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 305 [25], pl. 28, fig. 20.
Type(s): HOLOTYPE USNM_84155, Rio Grande, New Grenada.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 94.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 303 [23], pl. 28, fig. 18.
Type(s): HOLOTYPE USNM_84406, Brazil.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 93.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 294 [14], pl. 25, fig. 8.
Type(s): LECTOTYPE USNM_83900, Siam.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 93.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 292 [12], pl. 24, fig. 5.
Type(s): LECTOTYPE USNM_83935, Siam.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 92.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 289 [9], pl. 21, fig. 1.
Type(s): LECTOTYPE AMNH_31070 (by Boyko & Sage, 1996: 25), Siam, Asia.

Lea, 1857. Proc. Acad. Nat. Sci. 9: 85.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 316 [36], pl. 32, fig. 31.
Type(s): HOLOTYPE USNM_86519, near Cauca River, Prov. Popayán, New Grenada.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 92.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 291 [11], pl. 23, fig. 3.
Type(s): LECTOTYPE USNM_83951, Siam.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 93.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 296 [16], pl. 26, fig. 10.
Type(s): LECTOTYPE USNM_84153, Siam.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 93.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 293 [13], pl. 24, fig. 6.
Type(s): LECTOTYPE USNM_85196, Siam.
Lea, 1856. Proc. Acad. Nat. Sci. 8: 79.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 318 [38], pl. 32, fig. 32 [as ‘isocardioides’].
(renamed Plagiodon isocardioides Lea, 1857)

Lea, 1856. Proc. Acad. Nat. Sci. 8: 79 [as ‘isocardiodes’].
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 318 [38], pl. 32, fig. 32.
(new name for Plagiodon isocardiodes Lea, 1856)
Type(s): HOLOTYPE USNM_86326, Rio Plata, S.A.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 93 [as ‘lutens’].
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 291 [11], pl. 24, fig. 4.
(correct name for Unio lutens Lea, 1856)
Type(s): HOLOTYPE AMNH_29109, Newville [Tavoy], Burma, Asia.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 92.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 290 [10], pl. 22, fig. 2.
Type(s): LECTOTYPE USNM_83950, Siam.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 103.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 312 [32], pl. 30, fig. 27.
Type(s): LECTOTYPE USNM_84419 (by Cummings et al., 2025: 150), Lake Nicaragua, Nicaragua.
Lea, 1856. Proc. Acad. Nat. Sci. 8: 94.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 306 [26], pl. 28, fig. 21.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 103.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 310 [30], pl. 30, fig. 25.
Type(s): HOLOTYPE USNM_85201, India.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 94.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 297 [17], pl. 26, fig. 11.
(renamed Unio phaseolus de Gregorio, 1914)
Type(s): LECTOTYPE USNM_84143, Siam.

Lea, 1857. Proc. Acad. Nat. Sci. 9: 85.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 315 [35], pl. 32, fig. 30.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_85894 (by R.I. Johnson, 1974: 115), Rio de las Balsas, near Coyucan, Mexico.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 93.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 294 [14], pl. 25, fig. 7.
Type(s): LECTOTYPE USNM_84082, Siam.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 93.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 298 [18], pl. 26, fig. 12.
Type(s): LECTOTYPE USNM_85934 (by Boyko & Sage, 1996: 27), Siam.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 93.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 299 [19], pl. 26, fig. 13.
Type(s): HOLOTYPE USNM_84145, Siam.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 94.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 302 [22], pl. 27, fig. 17.
Type(s): SYNTYPE MCZ_175566, [Bombay] Ahmednager, India.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 94.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 304 [24], pl. 28, fig. 19.
(homonym of Unio shuttleworthi Küster, 1856)
Type(s): LECTOTYPE USNM_84416, Moreton Bay, Australia.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 95.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 309 [29], pl. 29, fig. 24.
Type(s): HOLOTYPE USNM_85727, Amazon R., S.A.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 93.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 300 [20], pl. 26, fig. 14 [as ‘subtriatus’ in text].
Type(s): HOLOTYPE USNM_85199, Siam.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 300.
(error for Unio substriatus Lea, 1856)

Lea, 1856. Proc. Acad. Nat. Sci. 8: 93.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 295 [15], pl. 25, fig. 9.
Type(s): LECTOTYPE USNM_84712, Siam.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 95.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 311 [31], pl. 30, fig. 26.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_84848 (by R.I. Johnson, 1974: 151), Medellin R., Mexico.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 94.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 301 [21], pl. 27, fig. 16.
(renamed Unio verreauxianus Lea, 1867)
Type(s): LECTOTYPE USNM_84418 (by Boyko & Sage, 1996: 28), C. Good Hope.

Lea, 1856. Proc. Acad. Nat. Sci. 8: 94.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 308 [28], pl. 29, fig. 23.
Type(s): HOLOTYPE USNM_85335, Montevideo, Uruguay.