40 IIELIX §. 8. 9. 



obscurioribus nubeculati; carina albida; labrum simplex, recluiii; 

 apertura subtetragona. — Diam. 3 — 5, alt. 2 mill. (Porro ) 

 Helix sardiniensis Porro in Rcvue zool. 1838. p. 225. 



— — Villa disp. syst. p. 54. 

 Habitat in Sardinia. 



Obs. Dcscriptio incom|tIela .\u huc referemla? An forma adullu ? 



§• 9- 

 64. H. cafiTra Ferussac. 



T. perforata , inflata , subdepresso-globosa , tenuis , fragilis, 

 costulato-striata , viridula, fusco-viridi irregulariter strigata; spira 

 brevis, obtusa; anfr. 4 convexiusculi, ullimus subdepressus; aper- 

 tura magna , lunato-ovalis , intus margaritacea; perist. tenue, 

 acutum , simplex , marginibus callo tenui junctis , columellari 

 retlexo, perforationem semioccultante. — Diam. maj. 51, min. 40, 

 alt. 30 mill. (Mus. Cuming.) 



Helix caffra (Helicophanta) Fer. pr. 3. Hist. t. 9 A. f. 8. 



— — Wood suppl. t. 7. f. 36. 



— — Lam. cd. Dh. 168. p. 107. 



_ _ Chemn. cd. II. Hcllx N. 444. t. 74. f. 1 —3 

 Helicophanta cafra Beck ind. p. 46. 

 Habitat in PromonLorio bonae spei. 



6.5. H. nicobarica Chemnitz. 



T. perforata, sinistrorsa, solida, globulosa, oblique striata. 

 castaneo-rufa, ad peripheriam, suturam et basin albo-zonata; 

 spira brevis , obtusa ; anfr. 5'/2 convcxiusculi , ullimus antice 

 desccndens, basi inflatus; apertura rotundato-lunaris, intus con- 

 color ; perist. simplcx , obtusum , album , margine columellari 

 reflexiusculo, perforationem fere tegentc. — Diam. maj. 37, min. 

 30, alt. 27 mill. (Mus. Gray.) 



Helix (pomatia contraria) nicobarica Chemn. IX. P. 1. p. 79. t. 108 

 f. 9H. 12. 



— nicobarica Desh. in Guer. mag. 1839. t. 3. 



_ _ Cheimi. ed. 11. Helix N. 22. p. 49. t 6. f. 6, 7 



llabitat in insulis Nicobaricis. 



06. H. semirugata Beck. 



T. perforata , globosa , tenuiuscula , j)allide fulvescens , slriis 

 incrementi lineisque impressis concenlricis supernc usque ad 

 ])<;ripheriam anfraclus ullimi subdccussata; anfr. 5 convexiusculi, 

 ultimus magnus, inflalus; apcrtura lunato-subovalis; perist. sim- 



