142 HELIX. 



increasing, covered with prostrate hairs in fresh specimens ; apertui 

 very narrow, lip slightly reflected and thickened, slightly incised in 

 the middle, parietal tooth long, narrow, projecting, extending from 

 the axis to the angle of the lip above ; umbilical region indented ; 

 dark chestnut color. Diam. 14 mill. 

 Mts. in East Tennessee and northern parts of Georgia and Alabama. 



The carina of each whorl slightly projects at the suture, Young 

 shells are widely umbilicated, with hairs covering the surface and 

 projecting around the periphery like a fringe. 





H. BARBIGERA, Redfield. PL 29, figs. 71-73. 



Somewhat lenticular, sharply carinated, the carinse of the sp 

 whorls overlapping at the suture, spire convexly conical; whorls 5z, 

 narrow, flattened, base convex; aperture narrow, transverse, lip 

 reflected, not dentate or incised, covering the axis, parietal lamina 

 long; dark horn color, epidermis striate, hirsute, forming cilise on 

 the periphery. Diam. 10 mill. 



N. W. Georgia. 



Like the other carinate Stenotremse, this is a mountain species. 

 It is readily distinguished from its allies by the absence of a lip 

 notch. 



H. MONODON, Rackett. PL 29, figs. 74-78. 



Whorls 5, narrow, convex, finely striate, hirsute or covered by 

 the scars of hairs, deeply grooved behind the reflected lip ; aperture 

 transverse, with a long, oblique parietal tooth; base very convex, 

 much impressed round the deep, narrow, more or less open 

 umbilicus. Diam. 7-10 mill. 



Inhabits the whole United States, east of the Rocky Mountains. 



It is H. eonvexa, Raf. 



Var. LEAH, Ward. Fig. 78. 



More convex, generally smaller, with more open umbilicus. 



Var. FRATERNA, Say. Fig. 77. 

 Smaller, umbilicus closed. 



Var. CINCTA, Lewis. 



More flattened, periphery obsoletely or slightly carinated, usually 

 with a brown peripheral band. 



Mts. of Western N. Carolii 



