ZONITES. 107 



* New Caledonian Species. 



H. SUBNITENS, Gassies. PI. 52, figs. 76, 77. 



Narrowly umbilicatecl, minute, discoidal, shining, veiy lightly 

 striulate, brownish corneous; whorls 4, subhorizontal, flattened, 

 suture well impressed, last whorl not descending. 



Diam. 2-2'5 mill. 



New Caledonia. 

 H. HAMELTAXA, Crosse. PI. 52, figs. 78, 79. 



Narrowly nmbilicated, depressed, discoidal, lenticular, thin, 

 translucent, smooth, shining, reddish corneous, suture impressed ; 

 whorls 3J, the last large, base planate, aperture subhorizontal, 



brownish within. Diam. 3 mill. 



New Caledonia. 

 H. NOUMEENSIS, Crosse, PL 52, figs. 80-81. 



Shell with moderate umbilicus, depressed, discoidal, thin, 

 fragile, scarcely striulate, dark violaceous brown, spire planate, 

 the apex a little concave, suture impressed ; whorls G, slowly 

 increasing, the last inconspicuously angulated, aperture brown. 



Diam. G mill. 



Noumea, N. Caledonia. 



II. XANTHOCIIROA, Crosse. PL 52, figs. 82, 83. 



Widely umbilicated, depressed, planorbiform, smooth, corneous 

 yellow, apex concave, blackish; whorls 7, slowly increasing, witli 

 deep suture, the last rounded, with flattened base. 



Diam. 3 - 5 mill. 



Ha b. iinknou'n. 

 H. PERROQUINIANA, Crosse. PL 52, figs. 84, 85. 



Narrowly umbilicated, depressed, planulate, thin, translucent, 

 a little shining, olivaceous, spire depressed, the apex barely 

 prominent, suture deep; whorls 4, regularly increasing, the last 

 large, depressed, rounded, base lighter colored, aperture still 



lighter. Diam. 7 '75 mill. 



South Bay, N. Caledonia. 



A variety hns been described, lighter colored, a little larger, 

 the peristome whitish, the basal and columellar lips a little 

 thickened within. Diam. 9 mill. 



H. BOURAILENSTS, Gassies. PL 52, figs. 86, 87. 



Ver} T narrowly nmbilicated, convex, thinly striulate, yellowish 



