HELIX. 175 



A variety minor occurs in Carniola; shell opaque, thinner. 

 Diam. 10'5 mill. 



H. CCELATA, Studer. PI. 39, figs. 73, 74. 



Widely umbilicated, lightly striate, (the juvenile densely pilose), 

 thin, light corneous, diaphanous; whorls 6, very slowly increasing, 

 flattened above, the last more convex below T , subangulated around 

 the umbilicus, the periphery obsoletely angulated, and with indica- 

 tions of a whitish band ; peristome with interior white callus. 



Diam. 9'5 mill. 



Germany. 



Pfeiffer considered it a variety of H. rufescens, Pennant. 



H. RUFESCENS, Pennant. PI. 39, figs. 66-68. 



Umbilicated, striulate, light brownish ; whorls 6, a little convex, 

 the last with obtuse peripheral angle bearing a whitish band, not 

 deflected in front ; peristome patulous, remotely white-lipped within. 



Diam. Il r 14 mill. 



Middle and Northern Europe, Siberia, Canada (introd). 



H. glabella, Puton (= = H. putonii, Clessin), H. Pascali, Mabille, 

 - H. submoiitana, Mabille), H. circinnata, Studer, H. clandestine^, 



Hartm. H, Altenana, Klees, H. corrugata, Hartm., H. turturum, 

 Gmel. are synonyms. Clessin has Vars. rufa, alba and subcarinata. 



H. Clessini, AVeinl. is also a synonym. 



Var. DANUBIALIS, Clessin. 



Subconic, subpellucid, whitish or light corneous, spire a little 

 elate ; whorls 6, rounded, the last without peripheral angle, with a 

 lighter band, umbilicus wide. Diam. 10-11*5 mill. 



Banks of the Danube. 



H. erecta, Hartm., and H. Galiziensis, Jeniss? are synonyms. 



H. MONTANA, Studer. PL 39, figs. 69, 71. 



Larger and more depressed than the preceding species, whorls 

 more convex with deeper suture, periphery rounded, umbilicus 

 wider, dark brownish. Diam. 14 mill. 



Germany, France, etc. 



Pfeiffer considered this a variety of H. rufescens. H. circinnata, 

 Rossm. (in part), H. striolata, C. Pfr., and H. rufina, Parr., are 

 synonyms. 



Var. GRATIANOPOLITANA, Rambur. Fig. 71. 



More depressed than the type, with rounder whorls and more 

 sunken spire, but acute apex, sometimes with one or two light bands 



