ZONITES. 155 



elegantly striate, strioe stronger at suture, corneous ; whorls 6, 

 slowly enlarging, the last rounded, suture impressed. 



Diam. 10 mill. -n u i u 



Baalbek, byna. 



H. frondosula, Mousson, is a synonym ; it occurs in the 

 neighborhood of Constantinople. 



II. HEMIPSORICA, Morelet. PI. 50, figs. 25-29. 



Moderately umbilicated, pellucid, shining, rugosdy striulaU-, 

 yellowish corneous; whorls 6, planulate, with profound suture, 

 regularly slowly enlarging, last whorl compressed below ; aper- 

 ture wide. Diam. 8 mill. 



Bona, Algeria. 

 Yar. PSATURA, Bourg. Figs. 28, 29. 



Whorls enlarging more slowly, stria- more distinct, umbilicus 

 a little wider. 



II. EURABDOTA, Bourg. PI. 50, figs. 30-32. 



Widely umbilicated, somewhat discoidal. fragile, pellucid, 

 minutely pustulosely striate, smooth and shining below, fulvous 

 corneous, base milk}- white ; whorls 5, regular!}' slowly enlarg- 

 ing, suture profound, last whorl rounded, not descending. 



Diam. 6*5 mill. 



Near Bona, Algiers. 

 II. CELLARIA, Miillcr. PI. 50, figs. 33-52. 



Moderately umbilicated, depressed, shining, pellucid, scarcely 

 striate, light greenish corneous, whitish below; whorls 6, 

 flattened, the last depressed, aperture obliquely widely lunate. 



Diam. 13 mill. 



Middle Europe, Azores, Canaries, Madeira, 



United States, Australia, New Zealand. 



A common species (introduced) in the Atlantic sea-board 

 cities of the United States, the E. glaphyra of Say. Other 

 synonyms are H. lucida, Pult., H. nitens, Mat. and Rack., H. 

 rubroflai-a, Chier., H. corneofulva, Pfr. (figs. 36-38), New 

 Zealand (introduced), H. Sydneyensis, Cox (fig. 39), Australia 

 (introduced). 



Yar. SIEVERSI, Buttger. Figs. 40, 41. 



/ o o 



Smaller, umbilicus narrower, base flatter. Diam. 7 mill. 



Transcaucasia. 



