932 



ZOOLOGY— MOLLUSCA. 



Helix patula, Deshayes, Encycl. Meth., ii, 1S30, 217. 



Anguispira perspectives, Teton, Aiu. Jour. Couch., ii, 1800, 202, pi. iv, f. 50. 



Distributed throughout the whole of Eastern North America. Taken 

 in New Mexico by expedition. 



No. 



Locality. 



Date. 



Collector. 



166 G 





Aug., 1S74 



Dr. H. ('. Yarrow. 





Genus VALLONIA, Risso. 

 VALLONIA PULOHELLA, Mull. 



Helix puJchella, Mull, Verm., 30.— Pfeiffer, Mod. Hel. Viv., i, 305.— Binney, Bost. 

 Jour. Nat. Hist., iii, 1840, 375, pi. 9, f. 2.— Id., Terr. Moll., ii, 175, 17, f. I.— 

 Gould, Invert., 1811, 170, f. 102.— Adams, Verm. Moll., 1842, 159.— 

 Leidy, T. M. U. S., i, 1851, 20, pi. ix, figs. 7-9.— Binney & Bland, Land & 

 Fresh Water Shells N. A., 1809, pi. 157.— Binney, Cat. Terr. Moll., Bull. 

 Mus. Comp. Zool., iii, No. 9, 194. 



Helix minuta, Say, Jour. Acad. Nat. Sci. Phila,, i, 1817, 123.— Nioh., Encycl., 3d ed., 

 1819; Biuney's ed., 3.— DeKay, N. Y. Moll., 1S43, 40, pi. 3, f. 33.— Morse, 

 Am. Nat., i, 1807, 544, f. 39.— Roberts, U. S. Geol. Surv. Terr., 1870, 408. 



Helix costata, Muller, vide Pfeiffer, Mod. Hel. Viv., i, 300. 



Vallonia minuta, Morse, Port. Soc., 1804, 21, figs. 54-50, pi. 8, f. 57.— Tryon, Am. 

 Jour. Couch., iii, 1807, 30, pi. 8, f. 20. 



A widely distributed form from Canada to Florida ; also found through- 

 out Europe, Siberia, Thibet, Madeira, Azores, &c. Belongs more particu- 

 larly to the northern region of the Central Province. 



No. 



Locality. 



Date. 



Collector. 



C3 





July. 1S73 



J. Wolf. 





Fam. vitrinidae. 



Genus VITRINA, Drapr. 



VITRINA PFEIFFERI, Newcomb. 



Vitrina -pfeifferi, Newcomb, Proc. Cal. Aead. Nat. Sci., ii, 1861, 92. — Tryon, Am. Jour. 

 Conch., ii, 1800, 244, pi. iii, f. 3. — Binney, Bui. Mus. Comp. Zool., iii, No. 

 13, 192-198. 



An exclusively western form, found from 37° to 42° latitude, from 



