40 IIELIX §. 19. 



Ilexiusculo. — Diani. maj. \3%, niin. liV-i; a^t- ^ njill. (Mus. 

 Cuming.) 



Helix argentea Reeve Concii. ic. n. 1434. t. 204. 



— — (Trochomorpiia) Pf7\ Vers. p. 132. 



Habitat in insula Mauritii (Barclay). 



Obs. Structura et coloribus persimilis H. Cotyledonis Bens 



237. Emiliana Pfr. (Coll. 94. — Proc. -(852. p. 83. — 



liv. n. 608. t. 108. — Ch. ed. nov. IJI. p. 479. — 

 Nanlnu Emiliana Gray Cix\..Vu\m.\}.Si(i. — Henii- 

 plccta Pfr. Vers. p. 120.) Mon. III. p. 35. 



238. Baconi Bens. [liv. n. 1166. t. 172. — Ch. ed. 



nov. III. p. 378. — Nanina Baconi Gray Cat. 



Pulra. p. 79. — Hemiplecta P/r. Vers. p. 120.) . . - - - 35. 



239. H. hyphasma Pfr. 



T. vix pcrforata, trochiformis, tenuis, confertim radiato- 

 striata , sulcis rcmotioribus spiralilDus quasi texta, pellucida, 

 cornco-albida ; spira subconcavo-conica , acutiuscula ; sulura 

 marginata; anfr. 7^2 convexiusculi, ultimus convcxior, com- 

 presso-carinatus, non descendens, basi convexus, nitidus, sub- 

 laevigatus; apcrtura obliqua, rhombeo-lunaris; perist. simplex, 

 rectum, margine columellari substricle descendenle, supernc 

 vix dilatalo, rcflexiusculo. — Diam. maj. 15, min. ISV.t, alt. 

 lOVa mill. (Mus. Guming.) 



Helix hyphasma Pfr. in Proc. Zool. Soc. 18-53. p. 124. 



— — Reeve Conch. ic. n. 12 97. t. 187. 

 Xanina hyphasma (Hcmiplecta) Pfr. Vcrs. p. 120. 



llabitat in insula Ceylon ;Th\vaites). 



240. H. verrucula Pfr. 



T. perforata, turbinata, tenuis, supcrne grossc et regula- 

 riter granulata, sericea, pellucida, fusco-cornea; spira conoidea, 

 apice obtusula; anfr. 4^2 vix convexiusculi, lente accrescentes, 

 ultimus medio acute compresso-carinatus, antice non descen- 

 dens, basi convexus, sublacvigatus, nitidus; apertura vix obli- 

 qua, securiformis; perist. rectum, acutum, margine columellari 

 subverticali , superne brevissime reflexo , perforationcm fcre 

 tegente. — Diam. maj. 7^2, min. GVi, alt. iV^ mill. (Mus. 

 Cuming. An adult.?) 



Helix verrucula Pfr. in Proc. Zool. Soc. 18o4. p. aO. 



— — lieeve Conch. ic. n. 1327. t. 190. 

 Nanina verrucula (Ilcmiplccta) Pfr. Vcrs. p. 120. 



Ilabitat in insula Cevlon (Thwailcs). 



