188 EUROPEAN SPECIES OP VERTIGO. 



simple, thin, the outer margin arcuate, unexpanded, colu- 

 mellar margin a little straightened, strongly reflected. Length 

 2%, diam. 1 mm. (Westerlund, 1894). 



Sweden, the special locality unknown. 



Pupa (Alaea) celata WESTERL., Nachrblatt D. M. Ges. 1894, 

 p. 173. 



Belongs to the little group of P. genesi Gr., eggeri Gr. and 

 inermis W., differing from all by its shape, the number and 

 the different growth of the whorls (Westerl.). 



Westerlund subsequently (1897) stated that this descrip- 

 tion, being inaccurate, was to be deleted and the following 

 substituted. It appears likely that the two descriptions ap- 

 ply to two species; but as neither has been figured, and no 

 specimens are at hand, this surmise cannot be controlled. 



Vertigo celata W. Shell subperspectively perforate, obese, 

 cylindric-ovate, obtuse, brown-reddish, whitish at apex, densely 

 striate under a lens. Whorls 5%, convex, separated by an 

 impressed suture which is oblique above, horizontal below ; the 

 three last very slowly increasing, the antepenult nearly double 

 the height of the preceding, the last two almost equal; last 

 whorl almost equal in height in front and behind, the back 

 regularly convex. Aperture semiovate, toothless, parietal 

 margin subhorizontal ; margins unexpanded, the outer regu- 

 larly arcuate. Length 2, diam. 1% mm. (Westerlund, Acta 

 Soc. pro fauna et flora Fennica, xiii, no. 7, 1897, p. 64). 



Sweden: Dalbyo, Sodermanland. 



65. VERTIGO REGULARIS (Westerlund). 



Shell openly perforate, cylindric, very obtuse, smooth, 

 rufous-corneous. Whorls 6, somewhat tumidly convex, the 

 upper ones very narrow, the antepenult one-third higher than 

 the preceding, equal to the penult, the last a third shorter 

 than the penult, at the back scarcely, in front distinctly higher, 

 rotund at base ; suture immersed [ ? impressed] , nearly hori- 

 zontal throughout. Aperture toothless, truncate-ovate, the 

 parietal wall a little oblique, the margins distant and separ- 

 ated, equally curved, the outer margin straight, columellar 

 margin shortly reflected. Length 2, diam. 1% mm. (West.). 



