218 HELIX. 



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



Perforate, thin, smoothish, diaphanous, whitish, whorls 5i, 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. 



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



H. JAPONICA, Pfr. PI. 51, figs. 48-51, 52. 



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

 light-margined pale chestnut peripheral line; whorls 5 J, 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. vitracea, Fer. is possibly identical. 



H. ALBIDA, A. Adams. PI. 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. PI. 51, figs. 54, 55. 



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

 light corneous; whorls 5M>, 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 striae, 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- 



