hanna: pleistocene shells. 19 



Douglas county and has been found in the Pleistocene of 

 Phillips county. Baker {Xaiit., XXIII, p. 93, 1909) records it 

 from Anthony, Kan. 



Succinea avara Say. Abundant. 



Succinea stretchiana Bland. Two specimens. This species 

 lives on the plains at the present time and the two shells se- 

 cured are plainly not fossils. 



Vallonia pulchella Miiller. Fifteen specimens. This is an 

 addition to the list of Kansas Mollusca and since it inhabits 

 cool, moist timbered areas it emphasizes that this was the con- 

 dition in western Kansas in Pleistocene time. 



Zonitoides smgleyanus Pilsbry. Two specimens, not fossils. 



PupiUa rmcscoi'wm Linnaeus. Abundant. In Pleistocene time 

 this was a very common snail in western Kansas. 



Pupoides marginatus Say. Six living shells. 



Gastrocopta armifera Say. One living shell. Both this and 

 the preceding species live in the region at the present time. 



