261 



B, Fossil Species.* 



1. M. aestuarina, Edwards. 



3L pusilla, (in part) Edwards, Eocene Moll, of G. B. p. 143, 



pi. 18, f. 6, 1852. 

 31. cesfumu'na, 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. 



411, 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. Middle Eocene ; Vahnondais, France. 



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



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



f. 1:3—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. 

 3IargineUa olivceformis, 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. 



3Iiocene and Pliocene ; Petershurgh, Va. ; N. Carolina, 

 and Sumter and Darlington Distr. S. C. 

 M. AURICULATA, Menard, is a Ringicula. 

 M. AURiSLBPORis, Defrancc, is Voluta auris leporis, Broc- 



chi (not Grat.) 

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



6. M. bella (Conrad.) 



Porcellana [Porccllanelld) bella, Conrad, Cat. in Proc. A. N. 



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

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



f. 4, 1868. 3Iiocene ; James R., Va. 



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



Gr. Br. p. 139, pi. 18, f. 2, a-g, 1852. 



Eocene ; England. 



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

 Catalogue of the American fossil species of this genus. 



