ABIDA. 285 



This Pupa is distinguished from affinis by the more ventri- 

 cose form, swollen in the middle; by the more ascending last 

 whorl, which is more contracted and more projecting from 

 left to right, giving the aperture an inclination in the same 

 direction ; by the narrower, more lengthened aperture, by the 

 different rate of increase of the whorls, the more regular stria- 

 tion, the fawn, not reddish color, etc. (Bofill). 



A. affinis perlonga Bofill. Shell subperforate-rimate, slen- 

 der, cylindric, tapering towards both ends, glossy, subtrans- 

 lucent, corneous-rufescent, the apex a little obtuse, smooth ; 

 obliquely, irregularly striate, the stride silky, hair-like, bent. 

 13-15 whorls, a little convex, rather rapidly increasing, ob- 

 lique, separated by a deep suture, the last irregularly rugose, 

 somewhat ascending to the aperture, having 4 pale transverse 

 bands, acutely crested at the rimation. Aperture vertical, 

 rather narrowly subelliptical, plicate : folds as in P. freseriana 

 but stronger, the parietal and columellar less deep within. 

 Peristome pale, reflected, the lip angular, margins subparallel, 

 little approaching, joined by a thin callous. Length 13, diam. 

 3, aperture 3 mm. long, 2 wide. Right bank of the Freser at 

 "Den Montagut, " 5 kilom. below Ribas, Prov. Gerona, Spain, 

 at about 700 meters elevation (Bofill). 



Pupa affinis var. elongatissima Bofill, Mol. del valle de Ribas, 

 Cataluna ; re-named Pupa perlonga BOFILL, Bull. Soc. Malac. 

 France, vii, 1890, p. 257. 



Pupa affinis of la Preste passes by insensible gradations, 

 still preserving its specific characters, from the type figured 

 by Rossmaessler to the var. elongata Moq.-Tand. and the var. 

 elongatissima of the abbe Dupuy, without however merging 

 with our P. perlonga (Bofill). The latter was found rather 

 rare, in company with P. catalonica. 



12. ABIDA PHTHISICA (Bofill). 



Shell rimate, subcylindric, slender, rather solid, tapering 

 above, contracting in the last whorl, glossy, corneous-fulvous, 

 obliquely and rather closely striate, the apex smooth, obtuse. 

 Whorls 11-12, a little convex, slowly and regularly increasing, 

 separated by an impressed suture, the last whorl exserted, 

 strongly ascending to the aperture, whitish, having four pale 



