CHONDRIN^E OF THE PYRENEAN CENTER. 29 



(a. Species of the Pyrenees, Catalonia and Aragon, to 

 Valencia.) 



9. CHONDRINA BIGORRIENSIS ('Charp.' Des M.). PL 2, figs. 1, 



2, 3, 7. 



The shell is fusiform-conic, perforate and rimate, hessian- 

 brown, fading to cinnamon-brown at the summit ; but slightly 

 glossy ; finely and regularly rib-striate (but varying in degree 

 and distinctness). Whorls moderately convex, the last a little 

 flattened over the palatal region, which is marked with three 

 white lines ; the base compressed into a rounded keel ; whitish- 

 rufous towards the lip. Aperture oblong, cinnamon within, 

 having 8 teeth: angular lamella long, continuous with the 

 spiral; parietal long and low; columellar larger and longer 

 than the subcolumellar ; 3 equal, rather long palatals, and a 

 very minute or subobsolete and inconspicuous suprapalatal. 

 Peristome white, but slightly expanded, a rather thick cinna- 

 mon callous within the throat, but not thickened at the edge. 



Length 9.2, diam. incl. perist. 2.8 mm. ; Sy 2 whorls. 



Length 7, diam. incl. perist. 2.4 mm. ; iy 2 whorls. 



Central Pyrenees: type loc. Bagneres de Bigorre (Hautes- 

 Pyrenees). 



[Pupa megacheilos] var. d, pusilla. (Pupa bigorriensis 

 Charp.), DES MOULINS, Actes Soc. Linn, de Bordeaux, vii, 

 1835, p. 163, pi. 2, f. D!, o2. ? P. farinesii var. bigoriensis 

 Charp. subvar. ventricosa DUPUY, Bull. Soc. d'Hist. Nat. Tou- 

 louse, xiii, 1879, p. 55 (La Preste; no description). Pupa 

 bigorriensis GOURDON, Moll. Mts. de Luchon et de la Barousse, 

 Bull. Soc. d'Hist. Nat. Toulouse, xv, 1881, p. 92 (dist. in 

 Hautes-Pyrenees and Haute-Garonne). FAGOT, same Bull., 

 xvi, 1882, p. 73 (Pic du Gar). Pupa megacheilos var. gracilis 

 ROSSM., Iconogr., ii, pt. 11, 1842, p. 10, pi. 53, f. 729 (Mont- 

 pellier and Barrege). 



Mr. Ancey has reported (as Pupa bigorriensis Charp. var. 

 sinistrorsa) finding a single sinistral specimen among normal 

 specimens from Cazaril, Bigorre (Le Naturaliste, i, 1881, p. 

 403). 



Des Moulins' original description follows: 



