HELIX §. 18. 85 



latus, basi convexus; umbilicus mediocris, conicus; apertura 

 obliqua, lunato-rotundata, intus nitida; perist. simplex, rectura, 

 marginibus conniventibus, columellari superne subdilalato, pa- 

 tente. — Diam. maj. 13, min. M, alt. 7 mill. (CoU. Nr. 159.) 



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

 Habitat in Nova Seelandia. 



349. H. similis Adams. 



T. angaste umbilicata, depressa, tenuiuscuia, subdistanter 

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

 vexa, vertice submucronato; anfr. 6 angusti, convexiusculi, 

 ultimus non descendens, latere subcompressus, basi subexca- 

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

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

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

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



— — Chemn. ed. II. Helix N. 798. t. Ml. f. 31. 32. 

 Habitat in insula Jamaica. 



350. H. Hollandi Adams. 



T. anguste umbihcata, depressa, tenuis, vix slriatula, vi- 

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

 6 angusti, vix convexiuscuH , 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. 



— — Chem7i. ed. II. Hehx N. 799. t. 127. f. 29. 30. 



llabitat in insula Jamaica. 



Obs. Peraffinis praecedenti ; diflert praecipue anfractibus magis dc- 

 pressis, basi plana, apertura latiorc. 



351. peregrina Arad. et Mag^g;. ♦{• Mon. I. p. 92. 



352. diaphanella Kryn. -|- - - - 92. 



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



— Ilelix Canim Benoit in coll. Rossmassl.). . . - - - 92. 



354. H. Balmei Potiez et Miehaud. 



T. mediocriter umbilicata. depressa, subdiscoidea, superne 

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

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

 culi, lentc accrescentes, ultimus depressus, peripheria suban- 

 gulatus, non descendens; apertura depressa, ovHh-lunaris; 

 perist. simt)lex , acutum, marginibus distanlibus, columeHari 



