HELIX. 149 



H. CLARKII, Lea. PI. 31, figs. 60-62. 



Imperforate, moderately thick, finely striated, suture moderate, 

 reddish corneous ; whorls 7, convex, slowly increasing, body whorl 

 well rounded; aperture subtriangular, the lip reflected and thickened, 

 with a long lamellar tooth on the base, and a strong curved tooth 

 on the parietal wall. Diam. 14 mill. 



Cherokee Co., N. Carolina. 



Almost a pigmy elevata, but with less convex whorls. 



Subsection IV, METODONTIA, Mollendorff, 1883. 



H. HEMIPLEURIS, Moll. PL 30, figs. 33, 34. 



Perforation nearly covered, somewhat solid, plicate above, almost 

 smooth below, white with a brown peripheral band, and a wider one at 

 the suture; whorls 7, periphery subangulated ; aperture with two 

 approximating parietal teeth, lip with a callus ridge rising into two 

 triangular teeth. Diam. 9 mill. 



Prov. Hubai, China. 



H. Moltneri, Gredler is a young shell perhaps of this species, 

 perhaps of H. Huaiensis. 



H. YANTAIENSIS, Crosse and Debeaux. PI. 30, figs. 35, 36, 40, 41. 



Perforation nearly covered, rather thin, subtranslucent, very finely 

 striated, yellowish corneous ; whorls 5, the last slightly compressed 

 towards the aperture, not descending; peristome white, a little 

 reflected, parietal wall with two small teeth, lip-teeth remote, small, 

 without callous connection. Diam. 8 mill. 



Yantai, Prov. Chantong, China. 



This is the type of Mr. Ancey's new group Tetrodontina, which 

 may be consideied a synonym of Metodontia. 



Var. TETRODON, MollendorfF Figs. 40, 41. 



Smaller and more elevated than the type, the lip teeth connected 

 by a callous ridge. Diam. 6'5 mill. 



Kalgan, China. 

 H. HOUAIENSIS, Crosse. PL 30, figs. 37-39. 



Umbilicus narrow, defined by an angle, white with an obsolete 

 sutural and a peripheral brown band; whorls 7, narrow, the last 

 not descending; peristome with broad internal callus, rising into 

 two triangular teeth, parietal wall with two minute teeth. 



Diam. 14 mill. 



Cheou-tcheou, China. 





