ZONITES. 149 



above, whitish and planulate below ; whorls 6-6^-, the earlier 

 ones slowh r , the later ones more rapidly enlarging, suture im- 

 pressed, periphery obsoletely angulated. Diam. 11:5-13 mill. 



Island of Sardinia. 



II. LUCIDA, Drap. PL 48, ligs. 31-43, 46-56 ; PL 49, figs. 51-59. 



Umbilicated, thin, irregularly impressed striate, pellucid, 

 shining, smooth, yellowish corneous or greenish corneous, base 

 becoming whitish ; whorls 5^, suture impressed, last whorl much 

 wider, subdepressed. Diain. 14 mill. 



Sweden, England, France, Germany, Italy. 



It is H. Draparnaldi, Beck, H. nitida, Drap., H. cellaria, 

 Desh, (non Miiller), and //, nitens, Altcn. 



Yar. SELECTUS, Mousson. 



Larger, umbilicus a little narrower, suture less impressed, 

 whitish, corneous. 



Var. KLATA, Borclu-rdinii'. Fig. 41. 



North Western Germany. 

 Yar. SYRIACA, Kobelt. Figs. 42, 43. 



More solid than the type, milky white below, last whorl com- 

 pressed, aperture pearly shining. Diam. 11 mill. 



Syria. 

 Yar. SEPTENTRIONALIS, Bouri:. PL 48, figs. 46-48. 



Whorls more flattened above and more convex below. 



Northern France. 



The author describes it as a distinct species, but it appears to 

 connect insensibly w r ith the type. 



Yar. BLAUNERT, Shuttl. Figs. 51-5o. 



Whorls a little narrower, more distinctly striulate, aperture 

 more oblono-. Diam. 13 mill. 



O 



Corsica, Nice, Provence. 

 This is H. lucida, var. compressa, Dum. 



Yar. FARINESIANA, Bourg. Figs. 49, 50. 



Whorls a little narrower, base declining towards the umbilicus. 



Diam. 15 mill. 



Brittany, Provence, Catalonia, etc. 



Differs but little from the preceding variety. 



