72 PULMONATA. 



fiat, enlarging rapidly, the last depressed, more convex beneath ; 

 aperture very oblique, lunate, nearly circular ; peristome simjjle, 

 thin, with the columellar margin regularly arched. Height 8j, 

 greatest breadth 18^, least breadth 14 mill. (F/r.) 

 Animal brown. — B.M. 



Vitrina irradians, Pfr. in Proc. Zool. Soc, 1851 ; Mon. Suppl. 

 p. 3. 



Hab. Ceylon. 



Asiatic : animal unknown. Perhaps Vitrinae. 



17- Helicarion Ceylanica. 

 Not described. 



Vitrina Cevlanica, Beck, Index, 2. n. 12 ; Mus. R. C. viii. t. 1 . f. 3. 



Pfr. Mon. ii. 503 ; Ic. t. 6. f. 34-38. 

 Hab. Ceylon. 



18. Helicarion papillata. 



Shell depressed, thin, nearly smooth, bright, pellucid, pale 

 flesh-coloured ; spire nearly level, papillated in the middle ; su- 

 ture deeply impressed, margined ; whorls three and a half, slightly 

 convex, striatulate near the suture, the last depi'essed, sometimes 

 sculptured with obsolete spiral lines, periphery rounded, base 

 rather wide ; aperture very oblique, ample, rounded-lunar, wider 

 than high ; peristome thin, upper margin thlated above, colu- 

 mellar receding, much-arched. Lat. maj. 10, min. 8, alt. 5 mill. 



Vitrina papillata, Pfr. in Proc. Zool. Soc. 1848 ; Mon. Helic. 



ii. 502. 

 Hab. Luzon, Philippines. 



1!). Helicarion planulata. 



Shell much-depressed, subdiscoidal, nearly smooth, bright, 

 flesh-colovu'ed ; spire nearly level ; suture impressed ; whorls 

 three, very slightly convex, very rapidly increasing, the last de- 

 pressed, narrow at the base ; a])erture very ample, verA' oblique, 

 lunar, transversely dilated; peristome thin, upper margin dilated 

 in front, columellar far receding, ai'ched. Lat. maj. 11, min. 8, 

 alt. 4^ mill. 



Vitrina planulata, Pfr. in Proc. Zool. Soc. 1848 ; Mon. Helic. 



ii. 502. 

 Vitrina depressa. Beck, MSS., not Jeffr. 



Hab. Luzon, Philippines. 



