202 EUROPEAN SPECIES OF VERTIGO. 



below, behind strongly sloping. Aperture oblique, narrow, 

 triangular, with 1 parietal lamella, 1 coluniellar lamella, in 

 the middle, receding below. Peristome simple, thin; outer 

 margin arcuate above, then obliquely produced to the left; 

 the coluniellar margin short, somewhat oblique towards the 

 right. Length 2%, diani. 114 mm. ( Westerlund). 



Switzerland: based on a single specimen without definite 

 locality. 



Pupa alpestris var. helvetica WESTERLUND, Fauna Europaea 

 1876, p. 198. Pupa helvetica WESTERL., Fauna Pal. Eeg. etc., 

 iii, 1887, p. 134. 



75. VERTIGO SCHULTZII (Philippi). PI. 18, fig. 9. 



Shell minute, rimate, subcylindric, obtuse, very smooth, 

 glossy, fulvous ; whorls cylindric, aperture rounded, the throat 

 5-toothed, single teeth on parietal wall and columella, 3 in 

 the palate, the lower one smallest. Alt. 1, diam. 7 / 12 lines; 

 whorls 5 to 6 (Philippi). 



Sicily: Palermo, Dr. Schultz. 



Pupa. (Vertigo?) schultziiPmiAPPi, Zeitschr. f. Malak. 1844, 

 p. 106. Pupa schultzii KUSTER, Conchyl. Cab. p. 93, pi. 13, 

 f. 3, 4. PFR., Monogr. ii, 359. Vertigo schultzii Phil., 

 KOBELT, Iconogr. (2), viii, p. 95, f. 1538 (copied from Kiister). 



A very remarkable species of the form of P. dilucida Ziegl., 

 but with the whorls more strongly convex, and without trace 

 of striae. By this it compares best with Vertigo pygmaea, 

 though far more slender, witli more strongly convex whorls. 

 The parietal fold emerges very far, while the second palatal 

 fold is only weakly developed (Philippi). 



A lost species, possibly a form of alpestris as surmised by 

 Kobelt, though the locality and very smooth surface are 

 against that view. 



76. VERTIGO ACHEILA Servain. 



Shell very minute, perforate, ovate, more convex 011 the 

 left than on the right side, very glossy, smooth, diaphanous, 

 corneous. Spire obtuse. Whorls 5, a little convex, slowly 

 increasing, separated by a rather deep suture, the last whorl 



