294 AZECA. 



Var. mabilleana Fagot. PL 46, figs. 7, 8, 9. 



Similar to menkeana but larger, the spire longer; reddish- 

 corneous. Whorls 8, very regularly and slowly increasing. 

 Outer and basal lips very strongly contracted, preceded by a 

 conspicuous ridge, palatal plicae 2, the lower somewhat im- 

 mersed as in menkeana, but there are no teeth within the back 

 of the last whorl. Length 7 to 7.5, diam. 3 mm. 



Southwestern France: Lourdes. 



Azeca mabilleana FAGOT, Monogr. des espec. Fr. Azeca, p. 6, 

 in Bull. Soc. Scient. Pyr.-Or., xxii, 1876. 



Figured from topotypes. 



Var. antiqua 'Bgt.' Fagot. A Quaternary fossil from around 

 Toulouse or Villa-franca (exact locality not given), resembling 

 mabilleana, but with more fusiform spire and stouter folds, and 

 with two teeth in the outer lip, one exactly opposite the parietal 

 lamella, the other very deeply placed, punctiform. The dimen- 

 sions are given as alt. 7 to 8, diam. \ mm., an evident error. 

 (Azeca antiqua Bourguignat, FAGOT, Bulletin Societe d' Hist. Nat. 

 de Toulouse, xiii, 1879, p. 299. ) 



Var. alzenensis Saint-Simon. 



Differs from menkeana by its more reddish, very finely striate 

 shell, the first whorls more swollen, the aperture piriform- 

 rounded basally instead of being piriform-angular; by having a 

 deeper sinus above in the outer lip; peristome and sutures of a 

 more ferruginous red, and by some differences in the teeth: 

 the upper parietal tooth is further from the parietal lamella; 

 the columellar folds are more curved, the upper internal one 

 having nearly the shape of the columellar tooth of Pupa partioti. 

 Finally, the small denticles deep in the throat are rounded and 

 smaller than in menkeana. Length 6, diam. 2.5 mm., whorls 

 7 to 8. 



Pyrenees: in rock crevices of the northern slope of Mt. Alzen, 

 near the Bastide de Serou (Ariege), at an elevation of 700 

 meters; also at Lourdes. 



Azeca tridens var. alzenensis SAINT-SIMON, Annales de Mala- 

 cologie, i, p. 24 (1870?), with description of dentition, ganglia 

 and appendix. 



