261 



B. Fossil Species* 



1. M. aestuarina, Edwnrds. 



31. jnisiUa, (in part) Edwards, Eocene Moll, of G. B. p. 143, 



pi. 18, f. 6, 1852. 

 31. cestuarina, Edwards, Geolog. Mag. ii, 541, pi. 14, f. 7, 



a-c, 1865. Eocene ; New Forest, England. 



2. M. Americana, Conrad, Foss. of Med. Tertiary, p. 86, pi. 



4«J, f. 12, (no description) 1838. 



Oligocene ; Claiborne, 3Iiss. 



3. M. ampulla, Desh., Coq. Foss. de Paris ii, 711, pi. 95, f. 



17 — 19, 1824. Desh., ed. Lam. Anim. sans Vert, x, 

 457, 1844. 3Iiddle Eocene ; Valmondais, France. 



M. ANATINA, I. Lea, is 31. crassilabra, Conrad. 



4. M. angystoma, Desh., Coq. Foss. de Paris ii, 710, pi. 95, 



f. 23—25, 1824. 

 Desh., ed. Lam. Anim. sans Vert, x, 456, 1844. 



3Iiddle Eocene ; France. 



5. M. antiqua, Redf., Ann. N. Y. Lye. Nat. Hist, v, 226, 



June, 1852. 

 Porcellana olivceformis, Tuomey and Holmes, Fossils of S. 



C. p. 131, pi. 27, f. 12, 13, 1857. 

 3Iarginella oliva^formis, Emmons, Report of Geol. Surv. N. 



C. 1858, p. 261, f. 133, 1858. 

 Porcellana ( Volutella) oliviformis, Conrad, Journ. Ac. Nat. 

 Sci. 1862, p. 564, 1862. 



Miocene and Pliocene ; Petersburgh, Va. ; N. Carolina. 

 and Sumter and Barlington Distr. S. C. 

 M. AURICULATA, Menard, is a Ringicula. 

 M. AURis-LEPORiS, Defrance, is Valuta auris lej^oris, Broc- 



chi (not Grat.) 

 M. AVENA, Michelotti, (not Val.) is 31. oblongata, Bonelli. 



6. M. bella (Conrad.) 



Porcellana {Porcellanella) bella, Conrad, Cat. in Proc. A. N. 



S. Phil. 1862, p. 564, 1862. 

 Prunum bella, (sic) Conrad, Am. Journ. Conch, iv, 67, pi. 6, 



f. 4, 1868. Mio(^ene ; James R., Va. 



7. M. bifido-plicata, Charlesworth, Edwards, Eocene Moll. 



Gr. Br. p. 189, pi. 18, f. 2, a-g, 1852. 



Eocene ; England. 



*I am indebted to T. A. Conrad, Esq., for his aid in perfecting the 

 Catalogue of the American fossil species of this genus. 



