14 CHONDRIN^ OF THE ALPIC CENTER. 



Var. minima Loc. Shell a third smaller than the type, of 

 a little more thick-set form, somewhat veiitricose, the striae 

 more strongly marked. Not common; le Mont-d'Or lyonnais 

 (Locard, Variations Malac., i, 1880, p. 253). 



Var. aureacensis Loc. Shell much lengthened, slim, little 

 tapering ; 10 nearly flat whorls, the last a little larger ; suture 

 very large, as though channelled ; aperture small, rather nar- 

 rowly oval, retracted at base ; 2 separated superior folds, the 

 second immersed ; 2 deeply placed columellars ; 3 immersed 

 palatals, the first barely reaching the peristome ; peristome 

 thin, sharp, straight ; shell vinous-brown, with little gloss, 

 ornamented with very strong and irregular ridges. Length 

 9-10, diam. 2 mm. Saint-Didier-au-Mont-d'Or (Rhone) ; Cau- 

 terets (Hautes-Pyreuees). (Pupa aureacensis Locard, Ann. 

 Soc. d'Agric. Lyon (7), iii, 1906, p. 186.) 



The two widely separated localities, in diverse faunas, raise 

 a suspicion that it may have been based on abnormal shells. 



Var. aveniculum 'Hartni.,' Clessin. Shell small (smaller 

 than that of hordeum), of circular form. Length 5-6 mm. 

 Switzerland, environs of Chur, Malans, right bank of the 

 Landquart, Zizers, in the Schlundtobel on the Greta v. Schu- 

 ders (Hartm. in sched. Am. Stein Graubiinten, p. 61. Tor- 

 quilla avenacea var. aveniculum Clessin, Moll.-fauna Oester- 

 reich-Ungarn, 1887, p. 229). 



Var. duplicata Kiister (pi. 1, fig. below fig. 7) differs from 

 avenacea by having four palatal folds, the upper one deeper 

 and shorter, the other three not reaching to the peristome ; the 

 upper fold at the insertion of the right margin of the peri- 

 stome is weak, not penetrating deeply ; nearly behind it the 

 second fold of the parietal wall is doubled, the right part 

 hardly half as large as the left. Length 2, diam. 1 line. Tou- 

 lon, southern France (Pupa duplicata Kiister, Conchyl. Cab., 

 Pupa, p. 109, pi. 14, f. 37-39). The separation of angular and 

 spiral lamella? is by no means rare among French specimens of 

 avenacea, but the present form is also distinguished by having 

 a suprapalatal plica and by small size. 



Var. lepta West. Fusiform-turrited, slenderly elongated, 

 acuminate, chestnut-brown or corneous-brown, nearly smooth ; 



