12 CHONDRIN^E OF THE ALPIC CENTER. 



species of this or related genera except Granopupa granum. 

 No satisfactory record for Spain has come to my notice, but 

 Caziot states that, according to Margier, it has been found in 

 the neighborhood of Gerona, Catalonia. Eastward the locality 

 Caucasus is a long way from any other record, but the species 

 probably extends through the southern provinces of Russia. 

 Sicily and Greece are the southern extremes of its well-known 

 range, but there is a single Algerian record, limestone rocks at 

 the foot of the great massif of Thabbourt Bouzgueur, Kabylia 

 (Letourneux, La Kabylie, i, 1872, p. 227). 



The thin lip, dark color, rounded base and 7 or 8 teeth are 

 the chief characters ; but there are forms more or less connect- 

 ing with C. megacheilos. 



Westerlund has compiled a formidable list of varieties; to 

 it considerable additions are here made. It is an undigested 

 mass of forms of different grades which nobody has yet studied 

 in a broad, comparative manner. Some of them probably 

 pertain to C. megacheilos. 



Form eupora West. Shell typical; aperture with 2 or 3 

 parietal and 2 columellar lamellae, 4 palatal plicae, the upper 

 one punctiform, the fourth short (West., 1887). Locality not 

 given. Caziot states that most specimens of middle France 

 are of this form. 



Form cerealis Ziegler MS. Shell larger, length 8, diam. 

 21/2-3 mm. (Westerlund). 



Form paucidens West. Shell typical, but with 2 palatal 

 plicae (West., 1887). Locality not given. 



Var. subcereana West. Aperture with 2 parietal, 2 colu- 

 mellar, 4 palatal plicae, the angular lamella very large, pala- 

 tals subequal, remote ; length iy 2 -8, diam. 2% mm. Sweden : 

 Gotland, Oeland; Denmark; also Tirol, Tauria (Alloglossa 

 avenacea var. subcereana Westerlund, Fauna moll. terr. et 

 fluv. Suecica, etc., 1873, p. 280 ; Modicella a. s., West., Synop- 

 sis, 1897, p. 97). 



Var. ferruginea West. Shell perforate, narrowly ovate - 

 conic, rufous-ferruginous ; very delicately, more distinctly stri- 

 ate at the suture, with few, distinct, whitish delicate riblets; 

 whorls convex, the last a little convex at base ; aperture with 



