ZON1TES. 195 



striate, a little shining, yellowish corneous ; whorls 4J, snbplanu- 

 late, increasing rapidly, base more convex. Diam. 15 mill. 



Athens, and Islands of Rhodes and Syr a. 



H. N1TELLTNA, Boill'g. PI. 59, figS. 99-1. 



Narrowly umbilicated, flattened above, more convex below, 

 diaphanous, shining, thin, decussated above by fine incremental 

 and spiral striae, greenish vitreous, below smooth, whitish ; 

 whorls 4^, somewhat rapidly enlarging, periphery obtusety angu- 



lated. Diam. 13-15 mill. 



Rhodes, Syria, Palestine. 



Is possibly a variety only of the preceding species if so, 

 Bourguignat's name has priorit}'. 



H. SUTURALIS, Bottger. PL 59, figs. 87, 97, 98. 



Yery narrowly perforate, thin, pellucid, very shining, orange 

 corneous, lighter on the base, becoming whitish ; whorls 4i, 

 slightly striulate at the suture, somewhat rapidly enlarging, 

 suture smooth, superficial, narrowly white-margined. 



Diam. 7'25-7'5 mill. 



Suram Mts., Transcaucasia. 



Is perhaps not adult, as suspected by Bottger; when fully 

 grown would probably approach closely to H. Moussoni, Kobelt. 



H. MOUSSONI, Kobelt. PI. 59, figs. 2, 3. 



Narrowly perforate, very lightly striulate, shining, thin, fragile, 

 diaphanous, yellowish corneous above, whitish below ; whorls 

 5, suture profound, last whorl dilated, subplanate above, more 

 convex below, aperture widel} r lunate, lip diffusely whitish. 



Diam. 19 mill. 



Xear Constantinople. 

 See remarks upon the preceding species. 



H. COMPLANATA, Desh. PL 59. figs. 78-80. 



Discoidal, thin, diaphanous, brownish, plane above, umbilicus 

 wide ; whorls a little convex, striate, the stride fading out at the 



periphery. Diam. 13 mill. 



Hab. unknown. 

 H. DJURJURENSIS, Debeaux. PI. 59, figs. 81-83. 



Moderately umbilicated, planorbiform, fragile, depressed above 

 and below, shining, very thinly striate, corneous yellow, whitish 



