17 



III^I.IV SOI.IIAISIA. Say. 



Shell has a broad umbilicus, is globose, coarselv 

 and obliquely striate, whirls six, lip acute; shell has 

 two reddish revolving bands ; aperture circular, color 

 brownish; shell coarse and heavy in texture, breadtli 

 one inch. Very abundant in some localities ; also in 

 the Quaternary, is oiie of the three banded species 

 found in the county. 



1BD':7.3\: «'MCIA-1'1-:B.I.A, Anthoxv. 



Shell small and dejjressed, whirls three and one- 

 lialfwith distinct oblique strije ; umbilicus large ; lij) 

 acute, color brownish or iiisset, breadth one fourth 

 inch. Quite abundant. 



GENUS HELIX, Lixn. 

 !m:wfMi-:.iiB:?«> ^ii^sono.x, Kaf. 



ni<'iix itiboi:U>i-iN, Say.— Shell lias nearly six whirls, 

 obliquely- and finely striated ; lij) white inside and re- 

 flected ; umbilicus covered b}^ the peristome; greatest 

 diameter thirt^'-two mill. The shell is horn-colored, 

 abundant. 



This fine species is so distinct in its characters as to 

 be easily recognized. Some specimens have been 

 found in Illinois with a tooth on tlu^ parietal wall, and 

 some also in Pennsylvania. 



IIi:i.lX IfllJI/ril.I.^llAT'A, Say. 



Shell depressed and sub-globose, whirls nearly six. 

 with fine oblique striae, aperture lunate, a little con- 

 tracted by peristome. Shell ornamented with numer- 



