IIELIX §. 20. 103 



coiivexus; apertura ovalis, angusta; perist. subreflexum. — Diani. 

 12, alt. 5 lin. (L.) 



Helix discoides Less. voy. dc la Coq. p. .310. 

 Habilat in Nova Ilibernia. 



Obs. "Affinis H. solilaiiae. » (Less. ) — Veiosiiaililer aiio loco coliocanda. 



258. H. papillata Pft*. 



T. umbilicala, depressa, subdiscoidea , solidiuscula , irregu- 

 lariter slriata, opaca, albida, spadiceo-nebulosa saturatiusque 

 strigata et maculata; spira plana, apice papillatim prominente; 

 anfr. 5 planiusculi, ultimus descendens , depresso-rotundatus; 

 umbilicus angustus, pervius; apertura obliqua, lunato-subcircu- 

 laris; perist. simplex, acutum, margine columellari vix dilatato. 

 — Diam. maj. 23, min. 20 '/2, alt. M mill. (Mus. Cuming.) 



Helix papillata Pfr. in Pioc. Zool. Soc. 1845. p. 129. 

 Ilabitat ? 



Obs. Similis H. Menkeaiiae Nr. 112. 



259. H. sudensis Pfr. 



T. umbilicata, depressa, regulariter et confertim costulata, 

 tenuis, diaphana, rubello-cornea ; spira vix elevata; anfr. 6 con- 

 vexi , ultimus non descendens ; umbilicus majusculus , perspecti- 

 vus ; apertura rotundato-lunaris ; perist. simplex, acutum , margine 

 columellari vix dilatato , breviter patente. — Diam. maj. 1 3 , min. 

 11 '/2, alt. 7 mill. (Goll. Forbes.) 



Helix sudensis Pfr. Symb. IIL p. 67. 

 Habitat rarissima prope Suda Candiae. (Forb.) 



260. H. Frivaldskyana RossmSssIer. -f 



T. perspective umbilicata, lenticulari-depressa, arctispira, 

 obtuse carinata, albido-straminea, subtiliter costulato-striata ; 

 anfr. 5 convexi; apertura oblique lunaris; perist. rectum, acutum, 

 simplex. — Diam. maj. 9, min. 8, alt. 3% mill. (Rm.) 

 Helix Privaldskyana Rossm. XI. p. 3. f. 691. 

 — convexa (Helicella) Fer. pr. 209. Ilist. t. 82. f. 1 ! Nec Rafin. 

 Habitat in Rumelia (Friv.), prope Baruth (Olivier, Fer.) 



261. H. perspectiva Say. 



T. late et perspective umbilicata, orbicularis, supeine vix 

 convexiuscula, subtus excavata, tenuis, rufo-cornea, regulariter 

 costulata; anfr. 6 '/2 convexiusculi , lente accrescentes; apertura 

 parva. lunato-subcircularis; perist. simplex . acutum, marginibus 



