56 HELIX t>. 10. 



165. H. siabrugata Pfr. 



T. subperforata, depresso-turbinata, tenuis, distanter sub- 

 rugata, pellucida. pallide cornea ; spira breviter conoidea, 

 aculiuscula; anfr. SYo— 6 planiusculi, ullimus carinatus, basi 

 convexiusculus, laevigatus; apertura diagonalis, subangulato- 

 lunaris; perist. rectum, acutum, margine columellari superne 

 vix reflexiusculo, — Diam. maj. 13, min. 11^2, alt. ey^ mill. 

 (Coll. Nr. 73.) 



Helix subrugata Pfr. in Proc. Zool. Soc. 1851. Jul. 



— — Cheinn. ed. II. Helix N. 1056. t. 136. f. 9. 10. 



Habitat ad Clarence River, New-South-Wales. 



* 

 166. Ibuensis Pfr. Mon. I. p. 51. 



167. H. Mauritiana Pfr. 



T. subperforata, conoideo-semiglobosa, solida , superne 

 ruditer arcuato-rugosa, opaca, unicolor saturate brunnea; spira 

 convexo-conoidea, apice obtusiuscula; sutura leviter impressa; 

 anfr. 6 vix convexiusculi , lente accrescentes , ultimus acute 

 carinatus (carina filari, pallida), basi convexiusculus, radiato- 

 strialus, lineis spiraiibus confertissimis decussatus; apertura 

 diagoisaiis, subsecuriformis; perist. simplex , acutum, margine 

 basali recedente, leviter arcuato, columellari calloso-incrassato, 

 subdentiformi. — Diam. maj. ] 6, min. 1 4, alt. 8 Y^ raill. (Coll. Nr. 74.) 

 Helix Mauritiana Pfr. in Proc. Zool. Soc. 1851. 



— — Reeve Conch. ic N. 189. t. 42. 



— — Chemn. ed. II. Helix N. 964. t. 147. f. 1. 2. 

 Habilat in montibus ad Black-River insuiae Maui-itii. 



168. H. Rawsonis Barclay. 



T. perforata, conoideo-lenticularis, solidula, superne costata, 

 subdiaphana, unicolor fusco- vel virenti-cornea vel fascia \ 

 angusta rufa supra carinam ornata; spira breviter conoidea, 

 acutiuscula; sutura impressa, denliculata; anfr. 6 convexius- 

 culi, ultimus non doscendens, medio acute carinatus, infra ca- 

 rinam late pallidefasciatus, inflatus; apertura parum obliqua, 

 angulato-lunaris; perist. simplex, rectum, marginibus remotis, 

 supero brevi, antrorsum subdilatato, basali arcuato, ad per- 

 forationem subcalloso, reflexiusculo. — Diam. maj. 15, rain. 

 13, alt. 8 mill. (Mus. Cuming.) 



Helix Bawsonis Barcl. mss. in Mus. Cuming. 



— — Reeve Conch. ic. N. 199. t. 43. 



— — Chemn. ed. II. Helix N. 965. t. 147. f. 3. 4. 

 Habitat iii sylvis insulae Mauritii, 



