HELIX §. 19. 95 



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

 Habitat circa civitatem Salama reipublicae Guatemalensis. 



Obs. ulnier R. nitentem et nitidam, ab utraque diversa, collocaiKia.» 



402. H. Pctronella Charpentier. 



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

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

 sutura impressa, submarginata; anfr. 4 planiusculi, ullunus 

 dej)resse rolundatus, non descendens, basi convexiusculus; 

 umbilicus angustus, pervius; apertura paruin obliqua, lunato- 

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

 superne vix dilatato. — Diam. maj. 5, min. 4^3, alt. 27^ mill. 

 (Mus. Cuming.) 



Helix Petronella Charpent. mss. 

 Habitat in suramis Alpibus Helvetiae rarissima. 



403. H. vernicosa Kraiiss. 



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

 striata, sublus sublaevigata, corneo-lutescens, vernicoso-nitida; 

 spira vix prominula; anfr. 4^2 vix convexiusculi, ultimus 

 multo latior, basi convexus; umbilicus mediocris, pervius: 

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

 perist. simplex, acutum, marginc columellari in laminam brc- 

 vem , triangularem, patentcm dilatato. — Diam. maj. 12, nun. 

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



Helix vernicosa Kranss sudafr. Moll. p. 76. t. 4. f. 2 3. 



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



— — Reeve Couch. ic. N. 198. t. 43. 

 jB. Minor, costulis superficici obsoletioribus. 



Ilabitat Natal Africae meridionalis. 



404. orthostoma Pfr. (Coll. 180. — Reeve N. 159. 



t. 36. — Chemn. ed. nov. II. p. 100. — Patula 



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



405. fragilis Pfr. (Coll. I8I. — Chemn. ed. nov. II. 



1). MO. — Patula Alb. p. 65.) - - - loo. 



406. H. pctrobia Benson. 



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

 nitida , utrinque oblique plicata, plicis subdistanlibus, inacqua- 

 libus, inlerslitiis sub lente argute longitudinaliter strialis; spira 

 vix elevata; sutura leviter impressa; anfr. 4^2 — 5 convexius- 

 culi, lente accrescentes, ultimus superne obtuse angulatus, 

 subtus convexior, circa umbilicum angulato-compressus; apei- 

 tura obliqua, compresso-lunaris, altior ((uam lata, infia sub- 



