HELIX §. 19. 95 



Helix paucilirata Morelet Testac. noviss. II. p. 8. N. 90. 

 Habitat circa civitatem Salama reipublicae Guatemalensis. 



Obs. v.\i\{qv H. nitentem et nitidam, ab utraque diversa , collocanda. » 



402. H. Petronella Charpenticr. 



T. umbilicata, depressa, tenuis, superne distincte et con- 

 fertim piicatula, pellucida, virenti-hyalina; spira convexiuscula; 

 sulura iinpressa, submarginata; anfr. 4 planiusculi, ultimus 

 depresse rotundatus, non descendens, basi convexiusculus; 

 umbilicus anguslus, pervius; apertura parum obliqua, lunato- 

 rotundata; perist. simplex, tenue, rectum, margine columellari 

 superne vix dilatato. — Diam. maj. 3, min. 4^3, alt. SYg mili. 

 (Mus. Cuming.) 



Helix Petronella Charpent. mss. 

 Habitat in summis Alpibus Helvetiae rarissima. 



403. H. vernicosa Krauss. 



T. umbilicata, depressa, tenuis, superne confertim plicato- 

 striata, subtus sublaevigata, corneo-Iutescens , vernicoso-nitida; 

 spira vix prominula; anfr. 47^ vix convexiusculi , ultimus 

 multo latior, basi convexus; umbilicus mediocris, pervius; 

 apertura subobliqua, ampla, lunato-ovalis, altior quam lata; 

 perist. simplex, acutum, margine columellari in laminam bre- 

 vem, triangularem, patentem dilatato. — Diam. maj. 12, min. 

 91/2, alt. 6 mill. (Coll. Krauss.) 



Helix vernicosa Kraiiss stidafr. Moll. p. 76. t. 4. f. 23. 



— — Pfr. in Zeitschr. f. Malak. 1848. p. 93. 



— — Reeve Conch. ic. N. 198. t. 43. 

 p. Minor, costulis superficiei obsoletioribus. 

 Habitat Natal Africae meridionalis. 



404. orthostoma Pfr. (Coll. 180. — Reeve N. i59. 



t. 36. — Chemn. ed. nov. II. p. dOO. — Patula 



Alb. p. 65.) Mon. I. p. 99. 



405. fragilis Pfr. (Coll. I8i. — Chemn. ed. nov. II. 



p. 110. — Patula Alb. p. 65.) - - - 100. 



406. H. petrobia Benson. 



T. umbilicata, depressa, pallide cornea, diaphana, minime 

 nitida , utrinque oblique plicata, plicis subdistantibus, inaequa- 

 libus, interslitiis sub lente argute longitudinaliter strialis; spira 

 vix elevata; sutura leviter impressa; anfr. 4^^ — 5 convexius- 

 culi, lente accrescentes, ultimus superne obtuse angulatus, 

 subtus convexior, circa umbilicum angulato-compressus; aper- 

 tura obliqua, compresso-lunaris, altior quam lata, infra sub- 



