218 HELIX. 



H. LARGILLIERTI Phil. PL, 50, figs. 45, 46. 



Perforate, thin, smoothish, diaphanous, whitish, whorls 5, the 

 last with obsoletely angulated periphery ; peristome simple, right 

 margin shortly expanded, basal a little thickened, sometimes with a 

 peripheral chestnut band, showing in the suture. 



Diam. 22 mill. 



Loo Choo Is. 



If. immaculata, Ads. and Reeve is a synonym. 



H. JAPOXICA, Pfr. PL 51, figs. 48-51, 52. 



Narrowly umbilicated, thin, striate, corneous yellow, with a 

 light-margined pale chestnut peripheral line; whorls 5?, the last 

 with carinated periphery, scarcely descending in front ; peristome 

 thin, shortly expanded, callously thickened on the middle of the 

 basal margin. Diam. 18 mill. 



Japan. 



H. vitraeea, Fer. is possibly identical. 



H. ALBIDA, A. Adams. PL 51, fig. 53. 



Subcovered perforate, thin, lightly obliquely striate, and spirally, 

 very thinly striulate, whitish ; whorls 6, subplanate, the last carin- 

 ated, not descending in front, a. little constricted behind the aper- 

 ture; peristome thin, expanded, dextral margin flexuous. 



Diam. 14 mill. 



Taiwan, Formosa. 



H. CONOSPIRA, Pfr. PL 51, figs. 54, 55. 



Moderately umbilicated, rather thin, striulate, a little shining, 

 light corneous; whorls 5 -6, the last rounded, scarcely descending; 

 peristome thin, whitish, a little expanded. Diam. 7'5-8'5 mill. 



Japan. 



H. TABUENSIS, Ancey. PL 51, figs. 60-62. 



Narrowly umbilicated, obliquely striate, decussated by close, fine 

 spiral stride, yellowish corneous, usually with a pale peripheral 

 band ; whorls 7, the last with obtusely angulated periphery, and 

 flattened base; peristome expanded, reflected. Diam. 16 mill. 



Tabu-Sima, Japan. 



H. patruelis, H. Ad., (not Angas) is a synonym. 



H. SPHINCTOSTOMA, A. Adams. PL 51, figs. 64-67. 



Narrowly perforate, obliquely striate, yellowish corneous, some- 

 times with a peripheral band ; whorls 6, the last rounded, con- 



