PUPILLA, EUROPE. 183 



The status of bigranata cannot be considered settled, but 

 for the purpose of this work Boettger's view is accepted. 



10. PUPILLA ALPICOLA (Charpentier). PL 21, figs. 16 to 18. 



A little larger than the preceding [P. marginata Drap., 

 muscorum auct.]. Very rare. Mont Gedroz, Vallee de Bagne 

 (Charp.). 



Switzerland: Mont Gedroz, Vallee de Bagne (Charp.); 

 Tour de Bavon, Valais, 2450-2481 meters (Piaget). 



Pupa alpicola CHARP., Cat. Moll. Swisse, Nouv. Mem. Soc. 

 Helvet, Sci. Nat, i, 1837, p. 16, pi. 2, f. 5. ? KUESTER, Syst. 

 onchyl. Cab., Pupa, 1848, p. 102, pi. 14, f. 3-5. PFR., Monogr., 



11, 305). Pupttla- alpicola Ch., PIAGET, Revue Suisse de Zool., 

 xxi, June 1913, p. 473, pi. 14, f. 20. 



Pupa muscorum var. madida GREDLER, Tirol's Land- und 

 Susswasser-Conchylien, Verh. zool.-bot. Ver. in Wien, vi, 1856, 

 p. 113. KOBELT in Iconographie (2), viii, p. 80, pi. 233, f. 

 1507. [Pupa] madiola WESTERLUND, Fauna, 1887, p. 124 

 (typog. err.). 



Closely related to P. cupa. According to Clessin, his Pupa 

 muscorum var. pratensis is equal to madida. 



Westerlund (NachrbL, 1875, p. 73; Fauna, 1887, p. 123) 

 considers alpicola to be a variety of P. sterri. Clessin admits 

 this for Kuester's figures, but thinks Charpen tier's shell is 

 madida Gredler. Piaget also takes this view, giving a new 

 figure of alpicola, our pi. 21, fig. 18. Charpentier 's original 

 figures are reproduced, a little enlarged by photography, in 

 pi. 21, figs. 16, 17. 



P. alpicola saxetana Piaget. PL 21, figs. 14, 15. Shell with 

 a quite long umbilical crevice, dilated at its margin, finely 

 and regularly striate, a little more than in the type, very 

 short and wide, very ventricose, oval-cylindric, with very little 

 gloss, brown; summit very much rounded. Only 5 whorls, 

 very convex, increasing more rapidly than in the type, the 

 suture deep. Aperture quite large, normal in shape, rounded. 

 Peristome lightly margined with white within, quite thin; 

 -columellar margin little oblique, narrow, better margined 



