144 HELIX 8. 34. 



1, margine basali retrorsum in laminam, umbilicum co- 

 tantem, continualo. — Diam, GYa, alt. Sy^ mill. (CoU. Nr. 379.) 



tum, 

 arctj 



Helix coarctata Pfr. in Proc. Zool. Soc. 1849. p. 128 et in 

 Zcitschr. f. Malak. 1849. p. 74. Nec Fer. 



— — (Endodonta) Albers Helic. p. 89. 



— cavernula Homhr. et Jacq. Voy. Pol Sud. JIoII. t. 6. f. 33 — 36. 



— — Chemn. ed. II. HelLx N. 781. t. 125. f. 29 — 31. 



Habitat in insula Tahiti. 



Obs. Specimina vidi plura prorsus aequalia, quare monsfrosa ha- 

 beri non possunt. 



752. H. Helenensas Forbes. 



T. umbilicata, depressa, lenuiuscula, confertim costata, 

 fusco et albido variegala; spira vix convexiuscula; sutura im- 

 pressa; anfr. 8 angustissimi , convexiusculi, ultimus non de- 

 scendens, subtus circa umbilicum latissimum, apertum sub- 

 compressus; apertura subverticalis, lunaris, lamellis 4 (2 in 

 pariete aperlurali, 2 in margine dextro) coarctata; perist. 

 rectum, acutuni. — Diam. maj. 4^3, min. 4^2, alt. 2 mill. 

 (Mus. Cuming.) 



Helix Helenensis Forhes in Proc. Zool. Soc. 1851. 

 Habitat in insula St. Helena. 



753. contorta Fcr. (Coll. 380. — Chenu 1. c. t. 25. 



f. 17. — Endodonta Alb. p. 89.) Mon. I. p. 185. 



754. daedalea Gould. -^ (Proc. Bost. Soc. 1846. p. 



173 et Exped. shells 1851. p. 54. f. 51.— Endo 



donta Alb. p. 89. ) - - - 186. 



755. sexlamellata Pfr. (Coll. 381. — Endodonta 



Alb. p. 89.) - -- 186. 



756. Oparica Ant. (Coll. 382. — Desh. in Fer. hist. 



I.p. 191.N. 257. t. 55.f. 12.— Endodonta^/6.p.89.) - - -186. 



757. H.? Leimonias (Bulimus) Gray. 



T. subimperforata, turrito-conica, solidiuscula, laevigata, 

 nitida, pellucida, pallide cornea, rufulo-maculata; spira turrita, 

 acutiuscula; anfr. 7 plani, ultimus acute carinatus, basi planus; 

 apertura subverticalis, depresso-quadrangularis, lamellis 3 va- 

 lidis albis (1 in pariete aperturali, 2 in margine dextro) coar- 

 ctata; perist. simplex, rectum. — Diam. 2Y3, alt. 2^^ mill. 

 (Coll. Nr. 383.) 



Bulimus (Laoma?) Leimonias Gray in Proc. Zool. Soc 18 49. 



p. 167. 

 Habilat in Nova Seelandia (Strange). 



