HELIX. 119 



* * Carinate species. 

 H. LEXTICULA, Fer. PI. 23, figs. 6-8. 



Umbilicated, lenticular, carinate, very lightly costulate-striate, 

 opaque, brownish corneous; whorls 5, a little convex, the last 

 scarcely descending in front; peristome flexuous, simple and 

 straight above. Diam. 8*5 mill. 

 Southern Europe, Northern Africa eastward to Egypt, Teneriffe, 



Madeira. 



It is perhaps H. ferruginea, Risso. 



Var. MAJOR, Mousson. 



More depressed, spire flattened, umbilicus a little wider, carina 

 subacute, suture margined above. Diam. 9-10 mill. 



Var. VIRILIS, Mousson. 



Thicker and heavier, with stronger costulations, crossing the 

 base also, carina subcrenulate ; peristome a little reflected and 

 thickened, lipped within, upper margin protracted, more thickened. 



Diam. 8 mill. 



I. Fuerteventura. 



If. subtilis, Lowe, is a synonym. 



Var. ANNAI, Paladilhe. 



Discoidal, striate rather than costulate, last whorl obtusely angu- 

 lated, aperture less angular, peristome less flexuous, columellar lip 

 not thickened as in the type. 



Morocco. 

 H. LENS, Ferussac. PI. 14, figs. 12-14. 



Openly umbilicated, lenticular, sharply carinate, costulate-striate 

 above, very, rarely pilose, brownish corneous ; whorls 7, subequal, 

 planulate ; peristome white, the upper margin simple, straight, the 

 dextral and basal reflected, with a punctiform callus at the superior 

 insertion. Diam. 13 mill. 



Morea and the Grecian Islands. 



H. barbata, Desh., is a synonym. 



Var. LENTIFORMIS, Ziegler. 



Smaller, with narrower umbilicus, and more obtuse carina. 



Attica. 



Var. PILIGERA, Blanc. 



Eubcea. 



Var. CALLOJUNCTA, Blanc. 



Lepanto. 



