HELIX. 261 



Var. MEDALPEDENSIS Clessin, 1879. 



Smaller, with flat spire, the whorls more convex below than in the 

 type. 



Province of Medalped, Sweden. 



In lat. 62 K, the most northern point reached by the species. 



EREMINA. 



P. 127, after H. DESERTORUM dele PI. 46, fig. 63. 

 After var. HEMPRICHTII, instead of PL 36, fig. 25, read PI. 35, fig. 

 19. 



In the text I considered H. chilembia Bourg. a form of var. hem- 

 prichti, on account of a series which seem to connect the extreme 

 forms. It may be better to admit the form as a distinct variety. 



Var. EHRENBERGI Roth, 1839. PL 36, fig. 25. 



Inflated, cretaceous, the peristome expanded, thickened, produced 

 and duplicated beyond the expansion. 



Var. chilembia Bourg. is a synonym. 



H. DUROI Hidalgo p. 128., 



Var. MINOR Kobelt, 1888. PL 46, fig. 63. 



Smaller than the type, legs transversely dilated. 

 Diam. 27, alt. 17 mill. 



Rio d* Oro, Western border of the Sahara. 

 MACULARIA, p. 140. 

 After H. EMBTA, add. PL 61, figs. 13-15. 



NOTE. The first three numbers of the present volume, each com- 

 prising 64 pp. text ami accompanying plates, were issued upon the 

 following dates: 1, March 16; 2, July 1 ; 3, October 1. 



