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 Publication Prime (1853): attributed nominal speciespublication summary
 Complete CitationPrime, T. 1853. Notes on the species of Cyclas found in the United States. Proceedings of the Boston Society of Natural History 4: 271-286. Available electronically. Attributed Nominal Species| Cyclas acuminata Prime, 1852Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 155.
 Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 283.
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 | Cyclas aurea Prime, 1852Prime, 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 bulbosa Prime, 1853‘Anthony’ Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 283.
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 | Cyclas cardissa Prime, 1852Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 160.
 Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 277.
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 | Cyclas castanea Prime, 1852Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 159.
 Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 273.
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 | Cyclas constricta Prime, 1853‘Anthony’ Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 274.
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 | Cyclas detruncata Prime, 1852Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 155.
 Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 273.
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 | Cyclas distorta Prime, 1852Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 158.
 Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 285.
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 | Cyclas eburnea Prime, 1853‘Anthony’ Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 279.
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 | Cyclas emarginata Prime, 1852Prime, 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, 1852Prime, 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, 1852Prime, 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 furcata Prime, 1853‘Rafinesque’ Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 281.
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 | Cyclas gigantea Prime, 1852Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 157.
 Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 282.
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 | Cyclas gracilis Prime, 1852Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 156.
 Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 274.
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 | Cyclas inornata Prime, 1852Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 159.
 Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 285.
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 | Cyclas jayensis Prime, 1852Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 157.
 Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 279.
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 | Cyclas modesta Prime, 1852Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 159.
 Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 284.
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 | Cyclas ovalis Prime, 1853Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 276.
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 | Cyclas pellucida Stimpson, 1851‘Prime’ Stimpson, 1851. Shells of New England: 16.
 Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 277.
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 | Cyclas ponderosa Prime, 1852Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 157.
 Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 282.
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 | Cyclas rosacea Prime, 1852Prime, 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 securis Prime, 1852Prime, 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 simplex Prime, 1852Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 159.
 Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 284.
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 | Cyclas solidula Prime, 1852Prime, 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 tenuis Prime, 1852Prime, 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 tenuistriata Prime, 1852Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 156.
 Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 272.
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