78 THE NAUTILUS. 



stage measures: length 43, height 41, diameter 33 mm. At this 

 period the resemblance to typical undata is quite striking. 



Mr. L. S. Frierson was the first to call my attention to the 

 peculiarities of this species, and both he and Dr. Bryant Walker 

 have generously aided me in its description. 



A NEW POLYGYRA OF THE STENOTREMA HIRSUTA GROUP FROM 



GEORGIA. 



BY GEO. H. CLAPP. 



POLYGYRA COHUTTENSIS n. Sp. 



Shell imperforate, thin, reddish-horn color; densely hirsute 

 with very fine, short hairs. Whorls 5, those of the spire con- 

 vex with a well-impressed suture; the body whorl with the per- 



iphery situated high, very convex below, impressed in the 

 umbilical region, abruptly deflected at the aperture and con- 

 tracted behind the lip. Aperture transverse, narrow, widening 

 anteriorly; parietal tooth large, erect, parallel to the lip in its 

 lower half, then curving outward and in the upper third inward 

 terminating in a hook which passes under the lip between the 

 notch and the lip tooth, outer end connected with the peristome 

 by a low ridge; outer lip reflected back against the body-whorl 

 buifree its entire length; lip notch stretched out so that it forms 

 a regular curve in the lip for over half its length with the edge 

 raised from the lip; beyond the notch the lip sweeps around the 

 inner end of the parietal tooth and then forms a small tooth 

 above; fulcrum medium. 



Largest shell (type), diam. 7, alt. 5 mm., smallest 6x4, 

 average 7 x 5 mm. 



The character of the lip at once differentiates this species 



