150 ZONITES. 



Yar. NAVARRICA, Bourg. PI. 49, figs. 57-59. 



Differs from the type in being smaller, smoother, more .shining, 

 with more slowly increasing whorls and somewhat more convex 



base which is not white. Diam. 12 mill. 



Noiilu'rn tipain. 



Described as a distinct species, but Kobelt considers it a mere 

 local variation of H. lucida. 



Yar. CALABRICA, Paulucci. PI. 48, figs. 54-56. 



Spire less elevated, last whorl more inflated, below, the aper- 

 ture somewhat oblique, elongate, descending. 



Calabria. 

 H. LEDERI, Bottger. PI. 48, figs. 44, 45. 



Rather widely umbilicated, rather solid, somewhat shining, 

 pellucid, light brownish corneous, base a little paler; whorls (i, 

 regularly enlarging, suture impressed, subcrenulate, distinctly 

 closely striate, last whorl somewhat planulate above and below, 



aperture widely lunate. Diam. 15 mill. 



Caucasus, alt. 6500 ft. 



Appears to connect with H. lucida through its variety Syriaca; 

 in general it differs by its stronger striae, more convex whorls, 

 etc. 



A. NITENS, Mich. PL 49, figs. 60-65. 



Widely umbilicated, convexly depressed, thin, diaphanous, 

 somewhat glabrous, yellowish above, whitish beneath ; whorls 4J, 

 planulate, the last dilated and subdeflected in front, aperture 



wide, lunate-oval. Diam. 10-13 mill. 



France, Germany, Italy. 



It is H. splendidula, Ziegler, perhaps H. nitida, Risso. 



Yar. HIULCA, Jan. Figs. 63-65. 



Shell larger, spire more convex, aperture larger, rounded. 



Diam. 15 mill. 



Lombardij. 

 H. PUDIOSA, Ziegler, is a S3 T nonym. 



Yar. RESSMANNI, Westerlund. 



More convex, last whorl with the base anteriorly tumid, aper- 

 ture large, columellar margin strongly arcuate. 



Carinthia. 



