EUROPEAN SPECIES OF VERTIGO. 201 



74&. Vertigo alpestris leontina (Gredler). PI. 18, figs. 5, 6. 



The shell is very small, subperforate, ovate-cylindric, obtuse, 

 very delicately striate, very glossy, pellucid, whitish-corneous. 

 "Whorls 4^, convex. Aperture semioval, 5-plicate, plicae un- 

 equal ; 1 parietal, 1 columellar, 3 very small palatals, the lower 

 one punctiform, the median and upper lamelliform. Peris- 

 torne a little reflected, thickened, white, margins joined by a 

 thin callus, the right margin sinuous. Length %, diam. % 

 of a line (Gredler}. 



Tyrol : Lienz, scarce, at the foot of the Tristacherwand. 



Pupa leontina GREDLER, Verh. zool-bot. Ver. Wien 1856, 

 p. 127, pi. 2, f. 4. WESTERLUND, Malak. Bl. xxii, p. 128 (iden- 

 tical with Pupa schultzii Phil.). PFR., Monographia iv, 680. 



Among the Tyrol Pupas this new species stands next to 

 P. shuttle wortliiana [alpestris], but it is smaller, lighter 

 colored, more transparent, and has half a whorl less. The 

 palatal folds (though the specimen is full grown) are far 

 more weakly developed and differ in number (Gredler}. 



Pupa isarica Westerlund. PI. 18, figs. 7, 8. 



2-toothed, without any trace of palatal folds, though full 

 grown, 1.7 x 1.1 mm. Bavaria : drift debris of the Isar, one 

 specimen. 



Pupa leontina Gredler, CLESSIN, Deutsche Excursions- 

 Mollusken-Fauna, 1876, p. 216, f. 122, not of Gredler. Pupa 

 isarica WESTERLUND, Fauna Pal. Reg. Binnenconch. iii, 1887, 

 p. 134 (based upon Clessin's note and figure) ; Synops. Moll, 

 extramar. Beg. Pal., 1897, index p. 11. Vertigo isarica West., 

 KOBELT, Iconogr. (2) viii, p. 95, f. 1539. 



Except by lacking palatal folds, this form agrees W 7 ith V. 

 leontina. It is known by a single example, possibly abnormal. 



74c. Vertigo alpestris helvetica (Westerlund). 



Shell rimate-perforate, long-cylindric, with conically taper- 

 ing apex, light reddish horn-color, very finely striate, whorls 

 6 1 /2> somewhat convex, regularly increasing, rather high, the 

 last whorl small, but little more than 14 the total length, an- 

 teriorly impressed at the base, then tubercularly blunt keeled 



