HELIX. 61 



H. ACCRESCENS, Heude. PL 13, figs. 26-28. 



Widely umbilicated, thin, pellucid corneous, with a whitish peri- 

 pheral band; whorls 7, narrow, slightly convex, slowly increasing, 

 the last obtusely angulated, peristome. white, narrowly reflected. 



Diain. 1( mill. 



Outckang, Chi mi. 



Heude thinks this may prove a minor variety of H. vermes. 



H. OLDHAMI, Benson. PI. 13, fig. L>r>. 



Widely umbilicated, thin, irregularly obliquely flexuously striate, 

 corneous (?), suture impressed; whorls 6-}, slowly increasing, sub- 

 planulate, the last whorl shortly and rapidly descending in front, 

 obtusely angulated above, base convex, angular around the umbili- 

 cus ; peristome a little expanded, margins approaching. 



Diain. 13 mill. 



Burmak. 

 H. FRIEDELIAXA, Martens. PL 13, figs. 29-31. 



Widely umbilicated, slightly obliquely striate, olivaceous brown ; 

 whorls 5'', scarcely convex, the last subangulated, deflected in front, 

 base convexly flattened; peristome white, slightly thickened, ex- 

 panded, margins approaching. Diain. 18 mill. 



Nagasaki, Japan. 



H. emcuLus, Pfr. PL 13, fig. -",2. 



Moderately umbilicated, solid, rugulosely striate, somewhat shin- 

 ing, white; whorls 5}, convex, the last obsoletely angulated, not 

 descending; peristome thickened within, shortly expanded, margins 

 approaching. Diain. 19 mill. 



Loo Choo Is. 



H. ALPHONSI, Desk PL 13, figs. 34, :]-",. 



Widely umbilicated, thin, fragile, corneous, brownish, yellowish- 

 white, obliquely lineated and irregularly punctate, subplicate and 

 spirally substriate above, smooth below ; whorls 7, narrow, the last 

 a little deflected in front, obtusely angulated above ; peristome 

 sinuous, reflected, columellar lip wide, with tooth-like thickening. 



Diain. 9 mill. 



Prov. Moupuii Eastern, Thibet. 



H. PLATYOMPHALA, Mollendorff. PL 13, fig. 44. 



Very widely umbilicated, thin, subpellucid, corneous, closely ob- 

 liquely striated, suture well impressed ; whorls 7, subconvex, the 

 last obsoletely angulated above, with a whitish zone, and very 



