CYLINDRELLA. 



delicate, white lines. Spire composed of about nine 

 whorls, though when entire the whole number would be 

 about twice as many ; they are convex, and sepa- 

 rated by a well-marked suture ; the last \vhorl has a 

 delicate carina, and extends in a short neck. The aper- 

 ture is bell-shaped, the lip white, continuous, and not in 

 contact with the preceding whorl. 



Length two-fifths of an inch ; breadth about one-tenth 

 of an inch. 



GEOGRAPHICAL DISTRIBUTION. Found abundantly in 

 Florida. 



REMARKS. This may be a diminutive variety of (7. 

 lactaria, a species presenting numerous variations in the 

 length of the neck and the development of the lip. But 

 it seems to be constantly smaller, darker colored, more 

 solid, and with more convex whorls. The peritreme, 

 also, seems never to rest on the penultimate whorl, as 

 is the case in C. lactaria. [G.] 



