The Mollusca of Eastern Iowa. 65 



FAMILY— ACHATINID-ff. 



Genus Cionella. — Jcff^' 

 C. subcylindrica. — L. 



Locally common in low places. Occurs in the Losss. 

 FAMILY— PUPIDiE. 

 Genus Pu-pa. — Lain. 

 P. PENTODON. — Say. 



Very common among the roots of small plants in high, rocky 

 places. Many hundreds were taken by us near Iowa City. 

 P. FALLAx. — Say. 



Usually restricted to small areas in which it occurs in con- 

 siderable abundance. It is found in rather high places under 

 stones. 

 P. ARMiFERA. — Say. 



Very common and very generally distributed. A Lcess 

 fossil. 

 P. CONTRACTA. — Say. 



Very common in both high and low moist places. This 

 and the preceding are our most common species of Pufa. 

 P. CORTICARIA. — Say. 



Locally common among the roots of grasses in high, rocky 

 places. 



P. MUSCORUM. — L. 



Occurs only as a Lass fossil, as does also the following: 

 P. BLANDi. — Morse. 



Very common in the Loess. 



Gentis Vertigo. — Muell. \ 



V. OVATA. — Say. 



Rather rare, in low moist places. 

 V. MILIUM. — Gld. 



Very rare. Only five specimens were found by us near 

 Iowa City. 



