56 CHONDRIN^E OF THE PYRENEAN CENTER. 



Var. ilendensis (Fagot). Shell rimate-perf orate, conic, stri- 

 atulate, corneous-buff; spire lengthened-turrited ; whorls 8, 

 regular, the last slightly larger, a little compressed at base. 

 Aperture oblique, ovate, with 2 parietal, 2 columellar and 2 

 palatal folds. Angular lamelliform, the parietal regular, ar- 

 cuate ; upper columellar tooth-like, the lower remote ; palatals 

 equal, not emerging, exactly opposite the columellar. Peri- 

 stome unexpanded, reflected at the umbilicus, the columellar 

 margin almost straight. Length 6, diam. 2 mm. Spain. 

 (Pupa ilende-nsis Fagot, Catal. Moll. Essera, 1888 ; descript. 

 from Westerlund, Synopsis, p. 102.) 



40. CHONDRINA GORBEANA n. sp. PL 3, fig. 12. 



The shell is deeply, rather shortly rimate, long-conic, slowly 

 tapering from the last whorl to the obtuse summit, glossy, 

 carob-brown, the apex paler, last whorl with a tawny or white 

 band behind the lip. Sculpture of fine but irregularly devel- 

 oped oblique striae. Whorls moderately convex, the last ascend- 

 ing in front, slightly compressed, the base quite narrowly 

 rounded. The suture is impressed, bordered by a pale gray 

 line. The aperture is truncate-oval, brown within. Angular 

 lamella very low; parietal lamella represented by a barely 

 perceptible callous ; columellar lamella small, far within, high 

 on the pillar. No palatal folds. The peristome is dilated 

 above the umbilical fissure, the outer lip not in the least ex- 

 panded ; within its edge there is a rather strong, white callous 

 throughout. Parietal callous thin and transparent. Length 7, 

 diam. to lip-edge 2.8 mm. ; iy 2 whorls. 



Spain : Pena de Gorbea (southern border of prov. Vizcaya). 



This species differs from avenacea by the strong white cal- 

 lous within the peristome, as well as by the obsolescence of 

 the lamellae and absence of plicae. In one specimen the an- 

 gular lamella is short and tubercular but stronger than in the 

 type. The species appears to be a degenerate member of the 

 bigoriensis group. The locality is not far east of Orduna. 



