202 HELIX. 



jEf. rufescens, Schrenck is a synonym. 

 H. HELVOLA, Friv. PI. 45, figs. 73-75. 



Moderately umbilicated, rather solid, rugulosely striated, decuss- 

 ated by very minute spiral lines, scarcely shining, corneous, with a 

 chestnut band margined below with white; whorls 6 J, slowly in- 

 creasing, the last not descending, with subangulate periphery ; lip 

 slightly expanded, a little margined within. Diam. 19 mill. 



Siberia. 



H. STRIGELLA, Drap. PI. 45, figs. 79-83. 



Moderately umbilicated, striate, corneous, with a whitish band, 

 fugaciously pubescent; whorls 5 -6, somewhat flattened, the last 

 descending in front ; periphery remotely labiate. Diam. 15 mill. 



Middle Europe, Caucasus. 



The synonyms are H. sylvestris, Alt., H. Altenana, Gartn., H. 

 fruticosa, Parr., H. cornea, Hartm., H. piligera, Andrz., H. vitri- 

 nosa, ZiegL, H. conspurcata, Nilss. (Juv.), H. hexagyra, Miihlf., 

 H.peregra, Parr. 

 Var. MOLDAVIA, Clessin. 



Larger, thicker, brownish corneous, flattened, slightly striate; 

 whorls, 7, slowly increasing ; peristome expanded ; umbilicus wide, 

 perspective. Diam. 18'5 mill. 

 Var. COLLINIANA, Bourg. Figs. 81-83. 



Umbilicus wider, infundibuliform, aperture smaller, whorls 

 well-rounded, more slowly increasing. Diarn. 15 mill. 



Sweden, Norway. 

 H. RUSCINICA, Bourg. PL 46, figs. 90-92. 



Moderately umbilicated, finely striate, epidermis with vestiges of 

 hairy scales, yellowish brown with a transparent peripheral band ; 

 whorls 5, well-rounded, moderately increasing, periphery subangu- 

 lated, last whorl descending in front ; peristome slightly expanded. 



Diam. 17 mill. 



Pyrenees. 

 H. APENNINA, Miihlf. PL 45, figs. 84-87. 



Narrowly umbilicated, striulate, very lightly spirally lineolate 

 and foveate, whitish corneous, becoming brownish anteriorily; 

 whorls 6, convex, slowly increasing, the last rounded, slightly de- 

 scending in front ; lip thin, with a remote white internal callus. 



Diam. 16*5-19 mill. 



Apennine Mts. Italy. 



