HELIX §. 18. 85 



latLis, basi couvexus; umbilicus mediocris, conicus; apertura 

 obliqua, lunato-rolundata, intus nilida; perist. simplex, rectum, 

 marginibus conniventibus, columellari superne sui)dilatato, pa- 

 tente. — Diam. maj. 13, min. 11, alt. 7 mill. (Coll. Nr. 159.) 



Helix lambda Pfr. in Proc. Zool. Soc 1851. Dec. 

 Habitat in Nova Seelandia. 



349. H. similis Adams. 



T. anguste umbilicata, depressa, tenuiuscula , subdistanter 

 et radiatim striatula, nitida, diaphana, albida; spira vix con- 

 vexa, vertice subuiucronato; anfr. 6 angusli, convexiusculi, 

 ultimus non descendens, latere subcompressus. basi subexca- 

 vatus; apertura subverticalis, lunaris; perisl. simplex, acutum, 

 margine columellari vix dilatato, reflexiusculo. — Diam. maj. 

 13, min. 12, alt. 67^ mill. (Mus. Cuming.) 



Helix similis Adams Contrib. to Gonchol. N. 3. p. 3 4. 



— — Chemn. ed. II. HeHx N. 798. t. 127. f. 31. 32. 

 Habitat in insula Jamaica. 



350. H. HoUandi Adams. 



T. anguste umbilicata, depressa, tenuis, vix striatula, vi- 

 renti-hyalina; spira parura convexa, vertice obtusiuscula; anfr. 

 6 angusti, vix convexiusculi, ultimus non descendens, sub- 

 depressus, basi planulatus; apertura subverticalis, lata, lunaris; 

 perist. acutum, rectum, margine columellari vix reflexiusculo. 

 — Diam. maj. 11, min. 10, alt. 5 mill. (Mus. Cuming.) 

 Helix Hollandi Adams Contrib. to Conchol. N. 3. p. 34. 



— — Chemn. ed. II. Helix N. 799. t. 127. f. 29. 30. 



Habilat in insula Jamaica. 



Obs. Peraflinis praecedenti; differl praecipue anfractibus magis de- 

 pressis, basi plana , apertura latiore. 



* 



351. peregrina Arad. et Mag^g^. -f Won. I. p. 92. 



352. diaphanella Kryn. -{• - - - 92. 



353. Testae Phil. (Coll. 160. — Hyalina Alb. p. 67. 



— Helix Canini Benoil in coil. Rossniassl. ) . . . - _ - 92. 



354. H. Balmei Potiez et Michaud. 



T. mediocriter umbilicata. depressa, subdiscoidea, superne 

 confertim striata, parum nitens, cornea, subtus laevigata, al- 

 bida; spira vix elevata ; sutura profunda; anfi-. 5 convexius- 

 culi, lente accrescentes, ultimus depressus, peripheria suban- 

 gulatus, nou descendens; apertura depressa, ovaii-lunaris; 

 perist. simplex , acutum , marginibus distantibus, cohnnellaii 



