NATURAL SCIENCES OP PHILADELPHIA. 205 



47. Sph. n o b i 1 e, Gld. 



Cycl. nobilis, Gld. Bost. Proc. v. 229. 1855- 

 Hab. Oceanica. 



48. Sph. Noraiandi. Michaud. 



Cycl. Normandi, Micb. Coq. fos. Hauterive, 27 pi. v. f. 22, 24. 1854. 

 (extra. Bull. Linn. Soc. Lyons.) 

 Hab. France, (fossil.) 



49. Spb. N o v a-Z e 1 a n d i a e, Desb. Proc. Zool. 22, p. 342. 1854. 

 Hab. N. Zealand & N. Holland. 



Cycl. nucleus, Stud. Mem. Soc. Helv. Sci, Nat. 1, p. 25, pi. 2. f. 23. 



1837. Is Sph. corneum, Scop. 

 Cycl. nuclea, Boissy. Bull. Soc. Geol. Fr. 2nd ser. iv. 175, 1846. Is 



Pisid. nucleum, Bgt. 



50. Spb. numismale, Matb. Bgt. Spb. 46. 1854. 



Cycl. numismalis, Matb. Cat. Metb. 146, pi. 14, f. 5. 1842. 

 Hab. France, (fossil.) 



Cycl. o b 1 i q u a, Lam. Lam. v.559. 1818. Is Pisid. a m n i c u m, Jen. 

 Cycl. o bo vat a, Sowb. Min. Conch. 2, 140, pi. 165, f. 4, 6. 1818. 



Is Cyrena obovata, Desb. 

 Cycl. obtusalis, Lam. Lam. v. 559. 1818. Is Pisid. obtusale,Pf. 



51. Sph. occidental e, Pr. 



Cycl. ovalis, Pr. (non Fer.) Bost. Proc. iv. 276. 1852. 



Cycl. occidentalis, Pr. Lewis, in loc. sup. cit. v. 122. 1855. Lewis, 



loc. sup. cit. vi. 2. 1856. 

 Sph. ovale, Stimps. Ads'. Rec. Gen. ii. 450. 1858. 

 Hab. N. America. 



52. Spb. oepfingense, Kl. 



Cycl. oepfingensis, Kl. Wurt. Jhrb. 2, p. 95, pi. 2, f. 19. 1846. 

 Hab. Germany, (fossil.) 

 Spb. or bicu lar ium, Barrat. Ads. Rec. Gen. ii. 450. 1858. Is Sph. 



partumeium, Say. 

 Cycl. orbicularis, Gldf. Petr. Germr. 5, 231, pi. 147, f. 5, a. b. 

 1834-40. Is Cyrena orbicularis, Rcemer. 



53. Sph. ovale, Fer. Bgt. Sph. 31, pi. iv. f. 10. 1854. 



Cycl. lacustris* Dep. Hist. Moll. 130. pi. x. p. 6, 7. 1805. 



Cycl. ovalis, Fer. Meth. Conch. 2d ed. 128, 136. 1807. 



Cycl. consobrina, Fer. Diet. Scie. Nat. xii. 279. 1818. 



Sph. Deshayesianum, Bgt. Amen. 1, p. 6. 1853. 



Sph. consobrinum, Fer. Ads. Rec. Gen. ii. 450. 1858. 

 Hab. Europe. 

 Cycl. ovalis, Nels. 11. Conch. 2, p. 408. 1851. Is Pisid. obtusale, 



Pf. 

 Sph. ovale, Pr. (non Stimps.) Ads. Rec. Gen. ii. 450, 1858. Is Sph. oc- 

 cidentale, Pr. 



54. Sph. o v a t u m, Lewis. 



Cycl. ovata, Lewis. Bost. Proc. vi. 2. 1856. 

 Hab. N. America. 



Cycl. pallida, Charp. Mss. 1851. Is Sph. elevatum, Hald. 

 Sph. pallidum, Gray. Ads. Rec. Gen. ii. 450. 1858. Is Sph. corneum, 



Scop. 

 Cycl. p a 1 u s t r i s, Drap. Tabl. Moll. 106. 1801. Is Pisid. a m n icum, 



Jen. 



*Non Tellina lacustris, Muller, which is Sph. lacustre. 



I860.] 



