HELIX. 75 



little convex, the last rounded, obsoletely carinated, not descending ; 

 lip white, tumid in the middle, reflected, columella sigmoid. 



Diam. 8*5 mill. 



Ins. Little Nicobar.. 



The type of the group Liocystis, Morch. 



H. GALEA, Benson. PI. 14, fig. 4. 



Scarcely perforated, obliquely striulate, decussated by very close 

 granulose spiral stride, suture slightly impressed, sub margined ; 

 whorls 7, the last acutely carinate, not descending, planulate below, 

 slightly excavated next the carina ; whitish (decorticated). 



Diam. 9 mill. 



Teria Ghat, Burmah.. 



H. GALERUS, Benson. PI. 14, figs. 2, 3. 



Narrowly, deeply umbilicated, light corneous, very closely 

 obliquely striate; decussated by slighter spiral striae, suture im- 

 pressed ; whorls 5, slowly increasing, a little convex, the last acutely 

 carinate, margined, base slightly convex, angulated obtusely around 

 the umbilicus. Diam. 9 mill. 



Ceylon. 



Unfigured Species. 



H. TRIFILOSA, Pfr. Ceylon. 



H. CARYX, Benson. Pliie Than, Tenasserim Valley. 



H. CEROCONUS, Pfr. Ins. Labuan. 



H. GYSSERIANA, Pfr. PL 14, fig. 7. 



Perforate, thin, irregularly striulate, diaphanous, corneous ; 

 whorls 6, somewhat flattened, the last acutely carinated below the 

 middle, base a little convex ; upper margin of peristome shortly 

 expanded, basal reflected. Diam. 9 mill. 



Moluccas, Sumatra.. 



The previously described H. connlus, Mart, (not Pease), from 

 Sumatra is a synonym. Nevill refers this to Trochomorphoides. 



H. ANGULATA, Issel. PL 14, figs. 8-10. 



Covered perforate, fragile, translucent, yellowish corneous, closely 

 lightly transversely striate, and slightly obliquely decussated, suture 

 moderate ; whorls 6i, a little convex, the last obtusely angulated, 

 not descending in front. Diam. 4'5 mill. 



Sarawak, Borneo* 



