PULMONATA. 113 



HeUx (Helicogena) simplex, Lam. 42. p. 77, ed. Desk. 45. 



Fer. Pr. Add. 48 bis ; Hist. t. 23 B. f. 6. 



Pfr. Mon. Helic. ii. 20. 



Desk. Hist. Hel. 162. n. 215. 

 Euryciatera simplex. Beck, Ind. 46. 



Hab, Amboina. 



109. Nanina misella. B.M. 



Shell imperforate, somewhat convexly-orbiculate, thin, very 

 obscurely striatulate, bright, pellucid, pale horny ; whorls five 

 and a half, nearly level, the last keeled, slightly convex beneath, 

 impressed in the middle ; aperture subvertical, angulate-lunar ; 

 peristome simple, thin, columellar margin obliquely arched, 

 slightly thickened. Lat. maj. 8, min. 7, alt. 4 mill. 



Helix (Helicostyla) misella, Fer. Pr. 306; in Voy. de Freycinet, 



Zool. 473. 

 Helix misella, Quoy Sf Gaim. Astrol. ii. 122. t. 10. f. 5-9. 



Lam. ed. Desk. 195. p. 121. 



Chemn. ed. 2, Helix, n. 210. t. 29. f. 14-16. 



Pfr. Mon. Helic. i. 38 ; Ic. i. 23/. 



Reeve, n. 632. t. 111. 

 Nanina (Microcystis) misella, Alb. 60. 

 Caracolla misella. Beck, Ind. 31. n. 5. 

 Hab. Guan Island, Moluccas ; Sandwich Islands. 



110. Nanina Clairvillia. B.M. 



Shell perforated, somewhat turbinated, smooth, lutescent, 

 brown above ; whorls six, convex, the last tumid ; aperture 

 roimded-lunar ; peristome white, obtuse, columellar margin steep, 

 somewhat arched, shghtly reflected. Lat. maj. 43, min. 36, 

 alt. 32 mill. 



HeUx (Helicella) ClairviUia, Fer. Pr. 243; Hist. t. 91. f. 1. 



Pfr. Mon. Helic. i. 43. 



Desk I. c. 182. n. 243. 

 Nanina ClairviUia, Gray, Proc. Zool. Sac. 1834, p. 59. 



Beck, Ind. 3. 



Geve,t.2(l f. 277 (Beck). 

 ^. HelLx ClairviUia, var. a, Fer. Hist. t. 91. f. 2, 3. 



Hab. Amboina. 



111. Nanina Stuarti^. B.M. 



Shell obsoletely perforated, depressedly turbinated, striated, 

 white, variously ornamented with brown and blackish bands ; 

 spire widely conoidal; whorls six, scarcely convex, the last rather 



