Corbicula perplexa Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 75, fig. 84.

Cyanocyclas globulus Prime, 1865
‘Jonas, in litter.’ Prime, 1865. Smithsonian Misc. Coll. (145): 6. [nomen nudum]
‘Jonas, in litt.’ Prime, 1870. Amer. J. Conch. 5: 130. [nomen nudum]
(intro'd as syn of Cyrena cuneata Jonas, 1844)

Cyclas aequalis Lamarck, 1835
Lamarck, 1835. unknown publication: ??.
‘Rafinesque’ Ferussac, 1835. Mag. Zool. 5(59-60): 29.
‘Rafinesque’ Prime, 1865. Smithsonian Misc. Coll. (145): 62.
‘Rafinesque’ Prime, 1870. Amer. J. Conch. 5: 174.
(error for Cyclas (Phymesoda) equalis Rafinesque, 1820)

Cyclas aurea Prime, 1852
Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 159.
Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 283.
Prime, 1865. Smithsonian Misc. Coll. (145): 35, fig. 26.

Cyclas emarginata Prime, 1852
Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 156.
Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 283.
Prime, 1865. Smithsonian Misc. Coll. (145): 43, fig. 38.

Cyclas fabalis Prime, 1852
Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 159.
Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 273.
Prime, 1865. Smithsonian Misc. Coll. (145): 40, fig. 33.

Cyclas flava Prime, 1852
Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 155.
Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 284.
Prime, 1865. Smithsonian Misc. Coll. (145): 43, fig. 39.

Cyclas fuscata Prime, 1860
‘Rafinesque’ Prime, 1860. Proc. Acad. Nat. Sci. 12: 292.
‘Rafinesque’ Prime, 1865. Smithsonian Misc. Coll. (145): 38.
(error for Cyclas furcata Prime, 1853)

Cyclas littoralis Prime, 1865
‘Férussac, Collect. Michaud’ Prime, 1865. Smithsonian Misc. Coll. (145): 54. [nomen nudum]
‘Férussac, in litt.’ Prime, 1870. Amer. J. Conch. 5: 155. [nomen nudum]
(intro'd as syn of Cyclas modioliformis Anton, 1837)

Cyclas occidentale Lewis, 1856
‘Prime’ Lewis, 1856. Proc. Boston Soc. Nat. Hist. 6(1): 2.
Prime, 1865. Smithsonian Misc. Coll. (145): 41, fig. 34.
‘Prime’ Lewis, 1872. Proc. Acad. Nat. Sci. 24: 109.
(new name for Cyclas ovalis Prime, 1853)

Cyclas pallida Prime, 1865
‘de Charpentier, Mss.’ Prime, 1865. Smithsonian Misc. Coll. (145): 44. [nomen nudum]
‘de Charpentier, in litt.’ Prime, 1870. Amer. J. Conch. 5: 153. [nomen nudum]

Cyclas rosacea Prime, 1852
Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 155.
Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 277.
Prime, 1865. Smithsonian Misc. Coll. (145): 50, fig. 48.

Cyclas saratogea Prime, 1865
‘Lamarck’ Prime, 1865. Smithsonian Misc. Coll. (145): 34.
(error for Cyclas sarratogea Lamarck, 1818)

Cyclas securis Prime, 1852
Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 160.
Prime, 1852. Ann. Lyc. Natur. Hist. 5: 218, pl. 6.
Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 276.
Prime, 1865. Smithsonian Misc. Coll. (145): 49, fig. 47.

Cyclas solidula Prime, 1852
Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 158.
Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 282.
Prime, 1865. Smithsonian Misc. Coll. (145): 36, fig. 27.

Cyclas sphaerica Prime, 1853
‘Anthony’ Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 275 [as ‘sphærica’].
‘Anthony’ Prime, 1865. Smithsonian Misc. Coll. (145): 50, fig. 49.

Cyclas striatella Prime, 1865
‘Férussac, Museum of Paris’ Prime, 1865. Smithsonian Misc. Coll. (145): 54. [nomen nudum]
‘Férussac, in litt.’ Prime, 1870. Amer. J. Conch. 5: 155. [nomen nudum]
(intro'd as syn of Cyclas modioliformis Anton, 1837)

Cyclas sulculosa Prime, 1865
‘de Charpentier, Mss.’ Prime, 1865. Smithsonian Misc. Coll. (145): 40.
‘De Charpentier, in litt.’ Prime, 1870. Amer. J. Conch. 5: 153. [nomen nudum]
(intro'd as syn of Cyclas fabalis Prime, 1852)

Cyclas tenuis Prime, 1852
Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 161.
Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 285.
Prime, 1865. Smithsonian Misc. Coll. (145): 47, fig. 44.

Cyclas venezuelensis Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 54. [nomen nudum]
Prime, 1870. Amer. J. Conch. 5: 155. [nomen nudum]
(intro'd as syn of Cyclas modioliformis Anton, 1837)

Cyrena californica Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 23.
Prime, 1870. Amer. J. Conch. 5: 142.
‘Prime’ Clessin, 1879. Conch. Cab. 9(3): 232.
(error for Cyrena californiensis Prime, 1860)

Cyrena colorata Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 30, fig. 23.

Cyrena cubensis Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 29.
(new name for Cyrena maritima d’Orbigny, 1853)

Cyrena meridionalis Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 19, fig. 14.

Cyrena ordinaria Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 19, fig. 15.

Cyrena recluzii Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 24, fig. 19.
(new name for Cyrena cordiformis Récluz, 1853)

Cyrena regalis Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 18, fig. 13.

Cyrena tumida Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 26.
(new name for Cyrena (Anomala) angulata Deshayes, 1854)

Pisidium adamsii Stimpson, 1851
‘Prime, MS’ Stimpson, 1851. Shells of New England: 16.
Prime, 1852. Boston J. Nat. Hist. 6(3): 352, pl. 11, figs. 1-3.
Prime, 1865. Smithsonian Misc. Coll. (145): 63, fig. 63.
(new name for Cyclas nitida Mighels & Adams, 1842)

Pisidium aequilaterale Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 63 [as ‘æquilaterale’].
Prime, 1870. Amer. J. Conch. 5: 165.
‘Prime’ Prime, 1895. Cat. Corbiculadae: 50 [as ‘æquilaterale’].
‘Prime’ Herrington, 1962. MPUMMZ (118): 31.
(error for Pisidium equilaterale Prime, 1852)

Pisidium altile Prime, 1852
‘Anthony’ C.B. Adams, 1847. Cat. Gen. Sp. Adams: 29. [nomen nudum]
‘Anthony’ Prime, 1852. Boston J. Nat. Hist. 6(3): 353, pl. 11, figs. 10-12.
‘Anthony, in litt.’ Prime, 1865. Smithsonian Misc. Coll. (145): 65 [as ‘Cyclas altilis’]. [nomen nudum]

Pisidium compressum Prime, 1852
Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 164.
Prime, 1852. Ann. Lyc. Natur. Hist. 5: 219, pl. 6.
Prime, 1852. Boston J. Nat. Hist. 6(3): 356, pl. 11, figs. 13-15.
Prime, 1865. Smithsonian Misc. Coll. (145): 64, figs. 67-68.

Pisidium consanguineum Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 76, fig. 86.

Pisidium equilaterale Prime, 1852
Prime, 1852. Boston J. Nat. Hist. 6(3): 366, pl. 12, figs. 23-25.
Prime, 1865. Smithsonian Misc. Coll. (145): 63, figs. 65-66 [as ‘æquilaterale’].

Pisidium ferrugineum Prime, 1852
Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 162.
Prime, 1852. Boston J. Nat. Hist. 6(3): 362, pl. 12, figs. 8-10.
Prime, 1865. Smithsonian Misc. Coll. (145): 71, figs. 77-78.

Pisidium grande Prime, 1865
‘Whittemore, in litt.’ Prime, 1865. Smithsonian Misc. Coll. (145): 66. [nomen nudum]
‘Whittemore, in litt.’ Prime, 1870. Amer. J. Conch. 5: 173. [nomen nudum]
(intro'd as syn of Pisidium variabile Prime, 1852)

Pisidium jamaicense Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 70, fig. 76.

Pisidium noveboracense Prime, 1858
Prime, 1858. Ann. Lyc. Natur. Hist. 6: 65, pl. 1, figs. 3a-c.
Prime, 1865. Smithsonian Misc. Coll. (145): 67, fig. 71.

Pisidium rotundatum Prime, 1852
Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 164.
Prime, 1852. Boston J. Nat. Hist. 6(3): 357, pl. 11, figs. 19-21.
Prime, 1865. Smithsonian Misc. Coll. (145): 72, figs. 81-82.

Pisidium simile Prime, 1863
Prime, 1863. Cat. Corbicul.: 15.
Prime, 1865. Smithsonian Misc. Coll. (145): 69, fig. 74.

Pisidium ultramontanum Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 75, fig. 85.

Pisidium variabile Prime, 1852
Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 163.
Prime, 1852. Boston J. Nat. Hist. 6(3): 351, pl. 11, figs. 7-9.
Prime, 1865. Smithsonian Misc. Coll. (145): 66, figs. 69-70.

Pisidium ventricosum Prime, 1851
Prime, 1851. Proc. Boston Soc. Nat. Hist. 4: 68.
Prime, 1852. Boston J. Nat. Hist. 6(3): 355, pl. 11, figs. 16-18.
Prime, 1865. Smithsonian Misc. Coll. (145): 72, figs. 79-80.

Pisidium virginicum Prime, 1865
‘Bourguignat’ Prime, 1865. Smithsonian Misc. Coll. (145): 61-62.
‘Gmelin’ Sterki, 1916. Ann. Carnegie Mus. 10(3/4): ??.
(reference to Tellina virginica Gmelin, 1791)

Sphaerium barbadense Prime, 1861
Prime, 1861. Proc. Acad. Nat. Sci. 13: 415.
Prime, 1865. Smithsonian Misc. Coll. (145): 53, fig. 53.

Sphaerium contractum Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 48, fig. 46.

Sphaerium cubense Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 58, fig. 60.

Sphaerium jayanum Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 46, fig. 43.
(new name for Cyclas jayensis Prime, 1852)

Sphaerium meridionale Prime, 1861
Prime, 1861. Proc. Acad. Nat. Sci. 13: 414.
Prime, 1865. Smithsonian Misc. Coll. (145): 55, fig. 54.

Sphaerium parvulum Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 57, fig. 58.

Sphaerium portoricense Prime, 1861
Prime, 1861. Proc. Acad. Nat. Sci. 13: 415.
Prime, 1865. Smithsonian Misc. Coll. (145): 56, fig. 57.

Sphaerium subtransversum Prime, 1860
Prime, 1860. Proc. Zool. Soc. London 28: 322.
Prime, 1865. Smithsonian Misc. Coll. (145): 52.

Sphaerium vermontanum Prime, 1861
Prime, 1861. Proc. Acad. Nat. Sci. 13: 128.
Prime, 1865. Smithsonian Misc. Coll. (145): 42, fig. 37.

Sphaerium viridante Prime, 1865
‘Morelet’ Prime, 1865. Smithsonian Misc. Coll. (145): 57, fig. 59.
(renamed Limosina viridans Prime, 1895)