267 



36. M. pinea, Bronn, ( Volvaria) Italiens Tertiargebilde, ii, 17, 



No. 48, 1831. Upijer Mioceyie ; Italy. 



37. M. planulosa, Bonelli, ined. 



Sismonda, Synops. Meth. Foss. p. 46, 1847. Orbigny, 

 Prodromus iii, 31, No. 830, 1852. Miocene ; Piedmont. 



38. M. plicata, I. Lea, Contr. to Geol. p. 178, pi. 6, f. 189, • 



1833. Oligoeene ; Claiborne., Ala. 



39. M. pusilla, Edwards, Eocene Mollusca Gr. Br. p. 143, 



pi. 18, f. 6, a-c, (in part) 1852. Eocene ; Great Britain. 

 M. SECALINA, Phil. See among recent species. 

 M. SEMEiST, I. Lea, is young of M. larvata, Conrad. 



40. M. simplex, Edwards, Eocene Moll. Gr. Brit. p. 143, pi. 

 18, f. 8, a-c, 1852. Eocene ; Great Britain. 



41. M. splendens, Grat., Actes. Soc. Lin. Bord. vi, p. 301, 



No. 572, 1833. 

 Grat., AUas. Conch. Foss. Adour. i, pi. 42, f. 36, 37, 1845. 

 Orb., Prodromus iii. 9, No. 134, 1852. 



3Iiocene ; Adour, France. 



42. M. subeburnea, Orb. 



31. eburnea, Grat., (not Lam.) Actes, Soc. Lin. Bord. vi, p. 



301, No. 573, 1833. Grat., Atlas, Conch. Foss. Adour. 



i, pi. 42, f. 38—40, 1845. 

 M. subeburnea, Orb., Prodromus iii, 9, No. 135, 1852. 



3Iiocene ; France. 



43. M. SUbgracilis, Redf. Here proposed for M. gracilis, 



Edw. ; preoccupied. 

 M. gracilis, Edwards, (not C. B. Ad.) Eocene Moll. Gr. Br. 

 p. 140, pi. 18, f. 4, a-c, 1852. Eocene ; Great Britain. 



44. M. Subinflexa, Redf. Here proposed for 31. injiexa, 



Emmons ; preoccupied. 

 31. injiexa, Emmons, (not Sowb.) Rep. Geol. Surv. N. C. 

 1858, p. 261, f. 137, 1858. 3Iiocene ; N. Carolina. 



45. M. submiliacea, Orb. 



31. miliacca, Dujardiu, (not Lam.) Mem. Soc. Geol. 1837, pi. 



19, f. 18, 1837. 

 31. submiliacea, Orb., Prodromus iii, 51, No. 844, 1852. 



Miocene ; Tours, France. 



46. M. subovulata, Orb. 



31. ovulata, Grat., (not Lam.) Actes. Soc. Lin. Bord. vi, 301, 

 No. 573, 1833. Grat., (not Lam.) Atlas. Conch. Foss. 



