PULMONATA. 18/ 



Vitrina Maravip;nfe, Mandral. Moll. Madon. 11. 



Piria e Scacchi, Antol. i. 124, 1841. 



Arad. e Magg. Cat. rag. 114. 



Phil. Sicil. ii. 216. 



Pfr. Mori. Helic. ii. 496. 

 Hab. Nebrodian Mountains, Sicily. 



b. Asiatic — Continental. 



10. VlTRINA GIGAS. 



Shell rather solid, depressed, with arched striae, obsoletely and 

 irregularly decussated by spiral lines, olive-horny ; spire minute, 

 level ; suture impressed ; whorls two and a half, rapidly in- 

 creasing, the last slightly depressed above, outline rounded, base 

 narrow ; aperture very oblique, large, regularly transversely ob- 

 long, slightly callous inside, margins nearly contiguous, upjier 

 and lower rather straight, columellar slightly arched. Lat. 30 

 by 18, alt. 13 mill; 



Viti-ina gigas, Benson in Journ. As. Soc. v. 350. 

 Pfr. Mon. Helic. ii. 496. n. 10. 



Hab. Bengal. 



11. VlTRINA CASSIDA. 



Shell depressed, thin,shghtly striated, scarcely shining, not quite 

 diaphanous, with the periphery ovate, pale greenish horn-coloured; 

 spire very shortly couoidal ; suture slightly bordered ; whorls 

 nearly five, enlarging rapidly, the last rounded, somewhat de- 

 pressed, broad beneath and impressed in the centre ; aperture 

 very oblique, lunarly ovate, pearl-shining within; peristome 

 simple, upper margin a little dilated forwards, basal margin 

 slightly arched, columellar margin slightly callous. Ileight 12, 

 greatest breadth 26, least breadth 22 mill. {Pfr.) 

 Vitrina cassida, Hutt., Pfr. Mon. ii. 497. n. 12 ; Suppl. 2 ; Icon. 



t. 2. f. 3-5. 

 Hab. Simla, Western Himalaya. 



12. VlTRINA PR^STANS. B.M. ? 



Shell depressed-semiglobose, thin, striatulate, slightly decus- 

 sated by rather distant spiral lines, scarcely shining, ])alc horny; 

 spire not prominent ; suture very lightly imjjressed ; whcn-ls three, 

 rapidly increasing, tlie last convex above, outline subdepressed, 

 base rather wide ; a])erture very oblique, subtriangular-semioval ; 

 peristome simple, slightly inflected, margins approximate, cohi- 

 mellai- receding, very arched. Lat. maj. 20, min. 16, alt. 10 mill. 



