1892.] Shell- Bearing Mollusca. 13 



Section Mesomphir, Rafinsqne. 

 Zonites fuliginoms Griffith . 



Rather rare in this county so far as I have observed. On 

 hill-sides in deep woods. 

 Zonites ligurus Hay. 



Zonites inffrtertiix Binn. 



Quite rare and has no existence in this part of the count v. 

 From Luther an. 1 Stivator. 



Genus Macrocydis Beck. 



Common. This genus has its greatest development in the 

 Pacific States, hut it is the opinion of Mr. Hemphill, whose 

 field of observation has been very extensive, that all of the 

 recognized species of that region are simply varieties of con- 

 cava. Specimens of concava from Kentucky are found to 

 very closely resemble the large forms of vancouverensis from 

 Oregon and "Washington. 



Family Helicidjs. 



P. tolitaria Say. 



Streator reports two localities where this species is found. I 

 know of one. It is in woods on high ground in Hiram town- 

 ship. The shells are small but high colored for the species 

 which is usually rather dull. Gregarious. 

 P. alternata Say. 



A very common and abundant species. 

 P. perspective/, Say. 



Also very common in rotten wood. 

 P. striatella Anthony. 



Rather common in wet places liable to overflow. It re- 

 sembles the preceding in appearance but is quite different in 

 its choice of location. 



