90 



PULMONATA. 



brown ; spire conoidal, rather pointed ; whorls seven, very little 

 convex, the last one keeled, not descending, convex, striate be- 

 neath, vAith the spiral lines obsolete ; aperture diagonal, luuate, 

 angulate ; peristome simple, straight, blunt, with the columellar 

 margin verv shortlv reflected above. Height 18, greatest 

 breadth 33, 'least breadth 30 mill. {Pfr.) 



Helix semidecussata, Pfr. in Proc. Zool. Soc. 1851, p. ; Ic. 



n. 955. t. 145. f. 8, 9 ; Mon. Suppl. 53. 

 Reeve, n. 567. t. 102. 

 Hab. Island of Ceylon. 



This shell is very nearly allied to H. inversicolor, Fer., but it 

 differs from it by its being perforate, and the spire more raised. 



48. Nanina Emiliana. B.M. 



Shell perforate, conoidally lenticular, rather solid, sculptured 

 above with crowded oblique ribs, rather regularly granulated by 

 impressed spiral lines, opake, yellowish-brown; spire conoidal, 

 with the outlines slightly concave, with the apex raised, rather 

 blunt ; whorls six, moderately convex, enlarging slowly, last not 

 descending, compressedly keeled, convex beneath and radiately 

 striate, slightly shining ; aperture oblique, angularly lunate ; peri- 

 stome simple, straight, with the columellar margin shortly re- 

 flected near the perforation. Height 8, greatest breadth 16^, 

 least breadth 15 mill. {Pfr.) 



Hehx Emiliana, Pfr. in Proc. Zool. Soc. 1852, p. ; Ic. n. 10/5. 

 t. 158. f. 33-35 ; Mon. Suppl. 55. 

 Reeve, n. 608. t. 108. 



Hab. Ceylon. 



49, Nanina Juliana. B.M. 



Shell openly perforated, depressedly-turbinated, apex obtuse, 

 solid, ponderous, smooth, striated at the suture, white ; whorls 

 five, slightly convex, the last rosy in front, zoned with a red line 

 at the suture, ornamented with a chestnut band at the margin 

 shaded downwards, nearly level beneath, impressed in the middle, 

 umbilical area brown ; aperture obhquely lunar; peristome simple, 

 obtuse, basal margin slightly thickened. Lat. maj, 43, min. 36, 

 alt. 23 mill, 



Nanina Juliana, Gray, Proc. Zool. Soc. 1834, 58. 



Miiller, Synops. 5. 



Beck, hid. 4. n. 11. 



Alb. 61 (Ryssota). 

 Helix rosacea. Sow. in Beech. Voy. 143. t. 38. f. 2. 

 Uelix Dufourii, Grat. in Act. Bord. xi. 407. t. 1. f. 2. 



