PULMONATA. 123 



descending, gii-dled at its peripheiy ^\^th a compressed, rounded, 

 darker-coloured keel, convex beneath ; a])erture oblique, lunate, 

 angular; peristome simple, straight, sharp, coluniellar mai-gin 

 very shortly reflected above. Height 14 ', greatest breadth 28, 

 least breadth 24 1 mill. {Pfr.) 



Helix glutinosa, Metcalfe inProc. Zool. Soc. 1851, p 70 



Pfr. Mon. Suppl. 54. 

 Hab. Borneo. 



132. Nanina Souleyetiana. 



Shell ))erforated, conoidal, depressed, rather solid, with wi-inkled 

 striai and with very crowded waving lines above between the 

 stria;, pale fulvous ; spire shortly conoidal, rather blunt ; whorls 

 six, rather flattened, increasing slowly, the last one sharply 

 keeled, convex, and with a chestnut-coloured band below the 

 keel, deeply excavated in the middle; aperture very obHque, 

 lunate, angulated ; peristome simple, with the margins nearlv 

 parallel, right margin forward, some\^■hat arcuate, columellar 

 margin rather thickened, very shortly reflected above. Height 

 18, greatest breadth 12, leastbreadth 36 mill. {Pfr.) ^ 



Hehx Soulevetiana, Pfeiffer, Proc. Zool. Soc. 1851 ; Ic n 950 

 t. 148. f. 16, 17 ; Mon. Suppl. 74. 

 Reeve, n. 378. t. J'-i- 

 Hab. ? 



133. Nanina Donovani. 



Shell perforated, somewhat depressed, thin, keeled, striate, 

 verj- minutely decussated above with oblique hues which are 

 rather concentric beneath, scarcely shining, diaphanous, fulvous ; 

 spire very shortly conoidal, suture impressed ; whorls five and a 

 half, flat, rapidly increasing, the last one dilated, not descending 

 anteriorly, rather flattened above, with one chestnut-coloured 

 band on the keel, which is rather sharp, inflated below the keel 

 and slightly excavated to the middle ; aperture oblique, rhom- 

 boidally oval, pearly inside ; peristome simple, sharp, with the 

 columellar margin very declivous, reflected into a vaulted trian- 

 gular lamina near the ])erforation, which is extremely narrow and 

 not pervious. Height 21, greatest breadth 47, least breadth 37 

 mill. (P/r.) 



Helix Donovani, Pfeiffer in Z.f. M. 1851, 26; Icon. n. [)G'J. t.l47. 



f. 8, 9 ; Moil. Suppl. 75. 

 Hab. Borneo. 



This species has nearly the same sculpture as N. Humphrey - 

 siana ; in shape it more resembles N, stolephora. 



g2 



