160 ZONITtiS. 



H. SCINTILLA, Lowe. PI. 51, figs. 88-90. 



Umbilicus wide, spiral; whorls 5, moderately enlarging, thin, 



shining, pellucid, greenish vitreous. I Mum. 2 mill. 



Madeira. 

 A //. cry stall ina in miniature, luit with larger umbilicus. 



II. FESTINANS, Sllllttl. PL 51, figs. 91, 92. 



Moderately, perspectively umbilicated, depressed, thin, striu- 

 late, pellucid, slightly shining, yellowish corneous, spire subplane, 

 suture profound ; whorls 5)r, convex, very slowl}'' enlarging, base 1 



flattened and more shining. Diam 5 mill. 



Ins. Palma, Canaries. 



H. YOLUTELLA, Pfr. PI. 51, figs. 93-95. 



Umbilicus rather narrow, shell subdiscoidal, thin, stimulate, 

 light corneous, with rather close chestnut strigations ; whorls 5, 



slowly enlarging. Diam. 7 mill. 



A zores. 

 H. brumaliSj Morel, et Drouet, is a synonym. 



II. CIRCUMSESSA, Sliuttl. PL 51, figs. 96-98. 



Widely perspectively umbilicated, reddish corneous, lightly 

 plicate-striate, with spiral lines ; whorls 4J, convex, slowly in- 

 creasing, suture profound. Diam. 9 mill. 



Ins. Teneriffe and Palma. 



Unfig it red Specie*. 



II. OSORIENSIS, Wollaston. Grand Canary I. 



H. THEMERA, Mabille. Grand Canary I. 



H. ROCHEBRUNEI, Mabille. Ins. Gomera. 



II. INERMIS, Morelet. Sierra Leone. 



^*^ Species Inhabiting the United States. 



II. INDENTATA, Sa} T . PL 51, figS. 99-1. 



Imperforate, flattened, thin, pellucid, epidermis highl} 7 polished, 

 3 T ellowish corneous; whorls more than four, rapidly enlarging, 

 with regular radiating impressed lines, body whorl expanding 

 towards the aperture, suture well impressed. Diam. 5 mill. 

 United States, Canada, Maine to Florida, and Texas, 



Westward to Utah, St. Domingo, Porto Rico. 

 A variety occurs with the umbilical region narrowly perforated. 

 H. subrupicola. Dull., is a synonym. 



