HELIX. 141 



H. MAXILLATA, Gould. PL 29, figs. 59-61. 



Globose, with conically convex spire, subangular on the periphery 

 and more convex below; whorls 5, narrow; aperture transverse, 

 nearly filled by a long, laminar parietal tooth, lip closely appressed, 

 narrow, without notch, with a lamina behind its margin, and scarcely 

 visible on account of the parietal tooth being in front of it ; umbilicus 

 covered; light chestnut color. Diam. 6 mill. 



Tennessee, Georgia. 

 H. EDVABDSII, Bland. PL 29, fig. 62. 



Rather thin, imperforate, angulate on the periphery, the angle 

 becoming obsolete towards the aperture; whorls 5, narrow, slowly 

 increasing, hirsute, base very convex, slightly indented in the 

 middle, with impressed spiral lines under the epidermis ; aperture 

 narrow, transverse, with a narrow, slightly curved, parietal tooth, 

 upper margin of the lip scarcely reflected, basal portion slightly 

 reflected, an<J appressed partly to the body whorl, with a tooth-like 

 callus within and an almost obsolete central notch ; dark brown. 



Diam. 9 mill. 



Mts. in Virginia. 



Differs from H. hirsuta in its more angulated periphery and less 

 distinct lip-notch. 

 H. LABROSA, Bland. PL 29, figs. 63-65. 



Imperforate, lenticular, periphery carinated, solid, finely obliquely 

 striate, epidermis thin, with prostrate hairs when fresh; whorls 5s, 

 narrow, slowly enlarging, the last deflected, and constricted behind 

 the lip ; aperture transverse, narrow, ear-shaped, extremities of the 

 lip connected by a callus and a long blade-shaped parietal tooth, 

 lip with a wide and deep central notch ; dark brown. 



Length 12'5 mill. 



Arkansas, Alabama, Tennessee. 



H. EDGARIANA, Lea. PL 29, figs. 66, 67. 



Somewhat lenticular, spire depressed trochiform, suture distinct; 

 whorls 5, flattened above, periphery carinate, base convex, imper- 

 forate ; aperture narrowly transverse, outer lip notched in the middle^ 

 parietal wall with a long blade-shaped tooth ; dark brown, hairy 

 when fresh. Diam. 10 mill. 



Cumberland Mts., Tennessee. 



H. SPINOSA, Lea. PL 29, figs. 68-70. 



Lenticular, depressed conical above, suture slight ; whorls 6, flat 

 above, acutely carinated at the periphery, convex below, slowly 



