260 SANDAHLIA. 



Syst., p. 63, no. 478, no description, teste BECK, Ind. Moll., p, 

 83. Pupa dufourii DUPUY, Hist. Moll. Fr., p. 400, pi. 20, f. 1. 

 Orcula cylindrica Mich., LOCARD, Ann. Soc. d'Agricult. 

 Lyons (7), iii, 1896, p. 208. GERMAIN, Moll, de la France et 

 des Beg. voisines, ii, 1913, p. 179. Sandahlia cylindrica 

 WEST., Synopsis, 1897, p. 77, with, form ectrodes. 



This species is easily known by the umbilicus, the closely 

 wound whorls, and the long, strong folds of the aperture. 



In typical cylindrica the right limb of the twinned angular 

 lamella is long, extending inward beyond the anterior end of 

 the parietal lamella. 



The description and figs. 1, 2 are from specimens received 

 from Michaud. 



Caziot (1916) stated that this species is confined to the 

 Spanish slope of the eastern Pyrenees, and at Villefranche-de- 

 Confluent, Amelie-les-Bains, la Preste and Saint-Laurent-de- 

 Cerdans on the French slope. In France it lives exclusively 

 in the valleys of the Tet and the Tech. In Spain it descends 

 as far as Montserrat, and penetrates very little westward. 



The following forms and varieties have been described : 



Var. elongatissima Dupuy. Shell of 15-16 whorls. La 

 Preste. 



Var. longa Moq. Shell of 14 whorls; aperture with 8 or 9 

 folds. Length 12 mm. ; no locality given. 



Var. curia Moq. Shell with 9-10 whorls; aperture much 

 folded ; length 5-6 mm. Aries. (See S. c. curtata.) 



Var. cylindriformis 'Bgt.' Loc. Cylindric, much length- 

 ened, relatively somewhat narrow; 12-13 slightly convex 

 whorls, the suture little, impressed ; aperture relatively small, 

 long-oval, the lateral borders subparallel; 2 superior folds, 

 one in the vicinity of the suture, the other contiguous and im- 

 mersed ; 2 immersed columellars, the first a little narrow and 

 long, the second shorter and a little less deeply placed; 4 

 palatals, the first rudimentary, the second the strongest, and 

 the only one reaching the peristome ; the two lower smaller ; 

 peristome interrupted, a little thickened, everted; shell dark 

 corneous-red, ornamented with very fine, regular and crowded 

 striae. Length 8y 2 -lQ, diarn. 21A-3 mm. La Prats (Pyrenees- 



