178 EUROPEAN SPECIES OP VERTIGO. 



The description of P. haeusleri follows. It is a little-known 

 form, placed by Westerlund near alpestris and heldi. 



52<z. Pupa haeusleri Sterki. PI. 17, fig. 9. Shell perforate, 

 cylindric, rather obtuse at the apex ; rufous-brown, the early 

 whorls paler ; irregularly striatulate, glossy, pellucid. Whorls 

 6, slowly increasing, convex, the suture rather deep, a little 

 ascending before the aperture. Aperture nearly % the length, 

 % oval or subtriangular, three plicate: one conic tooth on 

 the coluraella, two lamelliform in the palate. Peristome sim- 

 ple, straight, acute, the palatal margin having no callus or 

 impression either outside or within. Length 2.5, diam. 

 scarcely 1.2 mm. (Sterki). 



Switzerland: drift debris of the lower Aar in the vicinity 

 of Brugg, Dr. Hausler. 



Pupa haeusleri STERKI, Nachrbl. d. Malak. Ges. 1883, p. 72, 



fig. 



At first glance, especially on account of the similar color, 

 the specimens have a resemblance to P. striata Gredler, not 

 considering the strong fold on the parietal wall of that species. 

 The lack of this fold, in combination with the shape is con- 

 spicuous and characteristic for our species as belonging to 

 Vertigo (Sterki). 



53. VERTIGO MOULINSIANA Dupuy. PI. 17, figs. 1, 2, 3. 



Shell dextral, minute, ovate, ventricose, obtuse at apex, 

 smoothish, subperforate. Aperture semiovate, 4-toothed : 

 1 tooth on the parietal wall, another on the columella, and two 

 palatals, the lower one longer. Whorls 4, parted by a dis- 

 tinct suture, the last doubly larger than all the others to- 

 gether. Rather solid, glossy, subpellucid and of a uniform 

 fulvous color. Length 2y 2 to 3, diam. 2 mm. (Dupuy). 



Marshy places near Lyons, type loc. Spain, France, Sicily, 

 east to the Caucasus at Poti; north to Germany, Denmark, 

 the south of England and Ireland ; Pleistocene of Oester- 

 gotland, southern Sweden. Living upon plants growing 

 around swamps. 



Pupa moulinsiana DUPUY, Cat. extramar. Gall. Test. 1849, 

 no. 284; Hist. Nat. Moll. France, p. 415, pi. 20, f. 11.- 

 WESTERLUND, Fauna, iii, 1885, p. 136; Malak. Blatter, 1875, 

 p. 132. Alaea moulinsiana Dupuy, CLESSIN, Die Mollusken- 



