ZONITES. 189 



convex, the last large, dilated towards the aperture, scarcely 

 lighter-colored on the base, umbilical region impressed. 



Diam. 29 mill. 



Northern Italy. 



H. olivetorum of most French authors is H. incerta, Drap. 

 H. Leopoldiana, Cliarp., is a synonym. 



Var. ICTERICA, Tiberi. Figs. 84, 85. 



Smaller, with more elevated spire, and narrower last whorl. 



Naples. 



Westerlimd, considering icterica a distinct species, has 

 described but not figured a Var. Parthenopsea. 



Var. MAUROLICF, Benoit. PL 57, figs. 88-90. 



/ / o 



Last whorl a little more depressed, and wider, with more 

 transverse aperture, and lightly spirally striate. . Sicily. 



H.fuscosa, var. d Libia, Benoit, is a synonym. 



H. CAROTII, Paulucci. PI. 57, figs. 92-94. 



Narrowly umbilicated, smooth, pellucid, very shining, orange 

 corneous, lighter or somewhat olivaceous below, striulate near 

 the impressed, margined suture; whorls 6, the last dilated, vcrv 

 lightly striulate, base more. convex. Diam. 20-24*5 mill. 



Calabria. 

 II. FRACRANS, Paulucci. PI. 57, figs. 95-97. 



Narrowl} r umbilicated, depressed, subplane, subpellucid, fra- 

 gile, smooth, glabrous, striulate near the narrow-margined 

 suture ; greenish corneous, becoming whitish and opaque below ; 

 whorls 6, at first slowly increasing, the last dilated, a little 

 excavated around the umbilicus. Diam. 20 mill. 



Calabria. 

 H. FUSCOSA, Ziegler. PI. 57, figs. 8G, 87. 



Rather narrowly umbilicated, very lightly decussated above, 

 smooth below, shining ; yellowish corneous, lighter colored on 

 the base ; whorls 5.1, the last rather large. Diam. 17 mill. 



Sicily. 

 H. BENOTTI, Villa. PI. 57, figs. 93, 99. 



Moderately umbilicated, somewhat depressed, thin, striulate, 

 with very fine spiral lines, olivaceous corneous, suture impressed ; 

 whorls G^, slowly increasing, the last large, somewhat expanded 

 in front. Diam. 2G mill. 



Sicily. 



