120 THE NAUTILUS. 



220. VERTIGO PYGM.EA Drap. Quebec, New England and N. 

 Y., south to Va., west to Columbus, Ohio. (=V. callosa Sterki, 

 not of Reuss, Palseontographica, II, p. 30, 1849). 



221. VERTIGO RUGOSULA Sterki. South Carolina, Gulf coast to 

 Texas. 



22 la. VERTIGO RUGOSULA ORALIS Sterki (n. n. for ovulurn Sterki 

 preoc.). 



222. VERTIGO OVATA Say. Eastern North America, Out. and 

 Quebec to Florida ; Arizona, New Mexico. 



223. VERTIGO MORSEI Sterki. Kent Co., Michigan ; Northwest- 

 ern Ohio. 



224. VERTIGO VENTRICOSA (Morse). Quebec aud Maine to 

 Ohio. 



224a. VERTIGO VENTRICOSA ELATIOR Sterki. New Philadelphia, 

 Ohio ; East Saginaw, Mich., Clearvvater, Minn. 



225. VERTIGO GOULDII Binn. Ontario, Quebec and Maine to 

 Montana, south to N. J. and Md. 



225. VERTIGO APPROXIMANS Sterki. Illinois. 



226. VERTIGO BOLLESIANA (Morse). Maine to Indiana, south to 

 Virginia and Teun. ; mainly in the N. E. 



226a. VERTIGO BOLLESIANA ARTHURI Martens. Little Missouri, 

 Dakota. 



227. VERTIGO TRIDENTATA Wolf. Quebec and Maine to Minn- 

 esota, south to Illinois and Ohio. 



228. VERTIGO PARVULA Sterki. Summit and Lake Counties, 

 Ohio. 



229. VERTIGO OSCARIANA Sterki. Florida to Texas ; Tenn. 



Family ACHATINIDJE. 



Genus OPEAS Alber.s 1850. 



230. OPEAS MICRA (Orb.). Fort Dallas, Florida; Charleston, 

 S. C. West Indies and South America. Stenogyra octonoidcs is a 

 synonym. 



231. OPEAS SUBULA (Pfr.). Mobile, Ala. West Indies. (Intro- 

 duced in some greenhouses North). 



[Opeas goodalli (Mill.) and an undetermined Opeas have been 

 found in Phipp's conservatory, Pittsburgh (Clapp) ; and the latter 

 occurs also in Washington, D. C. (Lehnert). Subulina octona lives in 

 Horticultural Hall, Philadelphia. Until naturalized out of doors, 

 these can hardly be regarded as belonging to our fauna, any more 

 than the animals of zoological gardens.] 



