300 PROCEEDINGS OP THE ACADEMY OP 



Cycl. Saratogea, Lam. Lam. v. 560, 1818. Lam. (Desh. ed.) vi. 



271, 1835. Fer. Mag. Zool. 1835. Delessert, pi. 7, f. 9, 1841. Bgt. 



Amen. i. p. 9, 1853. 

 Cycl. similis, Say. Rafin. in Bory. St. Vt. An. Gen. Sci. Phy. v. 319, 



1820. Fer. Mag. Zool. 1835. Fer. Cat. 20, 1837. Jay. Cat. 3, ed. 



16, 1839. Gould. Rept. 72, f. 53, 1841. DeKay, 222, pi. 25, f. 264, 



1842. Ads. Vt. 18, 1842. Linsl. Amer. II. 48, 276, 1845. Ads. 



Cat. 30, 1847. Jay. Cat. iv. ed. 32, 1850. Pr. Bost. Proc. iv. 165, 



1851. Hartman, Cat. 1853. Bgt. Amen. i. p. 9, 1853. Lewis, Bost. 

 Proc. v. 122, 1855. Lewis, loc. sup. cit. vi. 2, 1856. 



Cycl. lasmarnpsis, Rafin. Bory, St. Vt. An. Gen. Sci. Phy. v. 319, pi. 



82, f. 19, 20, 1820. Fer. Mag. Zool. 1835. Bgt. Amen. i. p. 8, 1853. 



Cyd. gigantea, Pr. Bost. Proc. iv. 157, 1851. Loc. sup. cit. iv. 282, 



1852. Bgt. Amen. i. p. 8, 1853. 



Cyd. ponderosa, Pr. Bost. Proc. iv. 157, 1851. Loc. sup. cit. iv. 282, 



1852. Bgt. Amen. i. p. 9, 1853. 

 Cyd. striatina, Lam. Fr. Mag. Zool. 1835. 

 Sph. giganteum, Pr. Ads. Rec. Gen. ii. 450, 1858. 

 Sph. ponderosum, Pr. Loc. sup. cit. ii. 450, 1858. 

 Hab. N. Amer. 



Cycl. sulc ill os a, Charp. Mss. 1851. Is Sph. fab ale, Pr. 

 Cycl. te lline 11a, d'Orb. Prod. 2, 304. 1850. Is Cyrena tell in el- 

 la, Fer. 



84. Sph. tenue, Pr. Ads. Rec. Gen. ii. 450. 1858. 



Cyd. tenuis, Pr. Bost. Proc. iv. 161, 1861. Loc. sup. cit. iv. 825, 

 1852. 

 Hab. N. Amer. 



85. Sph. tenui stria turn, Pr. Bgt. Sph. 12. 1854. 



Cyd. tenuistriata, Pr. Bost. Proc. iv. 156, 1851. Loc. sup. cit. iv. 272, 



1852. Bgt. Amen. i. p. 9, 1853. 

 Cyd. cornea, Drap. C. B. Adams, Cat. 29. 1847. 

 Hab. N. Amer. 



86. Sph. Terverianum, Dup. Bgt. Amen. i. p. 6, 1853. Bgt. Sph. 19, 



pi. 2, f. 11, 15, 1854. 

 Cycl. Terveriana, Dup. Cat. Extram. Gall. Tert. Vt. 87, 1849. 

 Hab. France. 



87. Sph. transversum, Say. Ads. Rec. Gen. ii. 450. 1858. 



Cycl. transversa, Say. New Harm. Diss. ii. 356, 1829. Fer. Mag. Zool. 

 1835. New Harm. Diss. Rept. 10, 1840. DeKay, 224, 1842. Jay. 

 Cat. iv. ed. 466, 1852. Pr. Bost. Proc. iv. 274, 1852. Bgt. Amen, 

 i. p. 9, 1853. Lewis, Bost. Proc. v. 122, 1855. Lewis, loc. sup. cit. 

 vi. 2, 1856. 

 Cycl. detruncata, Pr. Loc. sup. cit. iv. 155, 1851, iv. 273, 1852. Bgt. 



'Amen. i. p. 8, 1858. 

 Cycl. constricta, Anthony. Pr. Bost. Proc. iv. 274. 1852. 

 Sph. detruncatum, Pr. Ads. Rec. Gen. ii. 450. 1858. 

 Sph. constrictum, Anth. Loc. sup. cit. ii. 450. 1858. 

 Hab. N. America. 



Cycl. trans versa, Lev. Grateloup, Moll. Fr. Cont. 49. 1855. Is Sph. 

 Parisiense, Pr. 



88. Sph. tr iang ulare, Say. 



Cyclas triangularis, Say. New Harm. Dissem. 2. 356, 1829. Fer. Mag. 

 Zool. 1835. New Harm. Dissem. (rept.) 10, 1860. Bgt. Amen. i. p. 

 9, 1853. 

 Hab. N. America. 



[June, 



