159 



S. 8oUdum, Normand, Rev. Mag. Zool. 345, 1853. Mem. 

 Soc. Sci. Phys. Bord. i, 1854. Prime Cat. Corb. 12, 

 1863. Europe. 



45. S. sphaericum, Anthony. 



Cyclas sphcerica, Anthony, Proc. Bost, Soc. N. H. Bost. iv, 



275, 1852. 

 )Sj)h. sphcericum, Anthony, H. and A. Ad., Gen. Rec. Moll. 



ii, 450, 1858. Prune Cat. Corb. 11, 1863. Smith. Inst. 



Misc. Coll., Prime Monog. Corb. 50, f. 49, 1865. 



U. S. of America, 



46. S. stamineum, Conrad. 



Cyclas staminea, Conrad, Amer. J. Sci. xxv, 342, pi. 1, f. 5, 



1834. 

 clas'fuscata, Rafinesque, Prime in Proc. Soc. N. H. Bost. 



iv, 281, 1852. 

 Cyclas bulbosa, Anthony, loc. sup. cit. iv. 283, 1852. 

 Sph. stamineum, Conrad, Brit. Mus. Cat. Conchif. 267, 1854. 



Prime Cat. Corb. 9, 1863. Smith. Inst. Misc. Coll., 



Prime Monog. Corb. 38, f. 30, 1865. 



U. S. of America. 



47. S. Steinii, Schmidt. 



Cyclas Steinii, Schmidt, Zeit. Malak. 118, 1850. 

 Sph. Steinii, Schmidt, H. and A. Ad., Gen. Rec. Moll, ii, 

 450, 1858. Grermany. 



48. S. striatinum, Lamarck, 



Cyclas striatina, Lamarck, An. v. 560, 1818. 



Cyclas edentula, Say, N. Harm. Dissem. 356, 1829. 



Cyclas striatina, Lamarck, Delessert. Recueil. pi. vii, f. 4, 



1841. 

 Cyclas cornea, C. B. Adams, Cat. 29, 1847. 

 Cyclas albida. Prime, Proc. Soc. N. H. Bost. iv, 155, 1851. 

 Cyclas tenuistriata, Piime, loc. sup. cit. iv, 156, 1851. 

 Cyclas acuminata, Prime, loc. sup. cit. iv, 158, 1851. 

 Cyclas inornata, ^ 



Cyclas simplex, V Prime, loc. sup. cit. iv, 159, 1851. 

 Cyclas modesta, J 



Sph. tenuistriatum, Prime, Brit. Mus. Cat. Conchif. 267, 1854. 

 Sph. alhulum, Prime, loc. sup. cit. 269, 1854. 

 Sph. inornatum, Prime, loc. sup. cit. 270, 1854. 

 Sph. neodestum, Prime, loc. sup. cit. 270, 1854. 

 Sph. simplex. Prime, loc. sup. cit. 271, 1854. 

 Sph. acuminatum, Prime, loc. sup. cit. 271, 1854. 

 JPisum edentidum, Say, loc. sup. cit. 282, 1854. 

 Musculium edentulum, Say, H. and A. Ad., Gen. Rec. MolL 



ii, 450, 1858. 



30 



