180 ZONITES. 



impressed ; whorls 5, a little convex, the last rounded, more 

 convex below. Diam. 5 mill. 



Vate I si., New Hebrides. 

 H. OSTIOLUM, Crosse. PL 54, fig. 99. 



Narrowly umbilicated, rather thin, scarcely striulate or shin- 

 ing, light brownish, suture impressed; whorls 4J, slightly convex, 

 the last rather large, aperture Innately rounded, brownish, colu- 

 mellar margin slightly dilated, violaceous brown. 



Diam. 4*75 mill. 



New Caledonia. 

 II. YIMONTIANA, Crosse. PL 54, fig. 100. 



Covered sublimate, thin, very lightly, thinly, obliquel}^ striu- 

 late, translucent, scarcely shining, corneous, suture impressed ; 

 whorls 4, convex, rapidly increasing, the last scarcely equaling 

 the spire, rounded, aperture corneous, the margins converging. 



Diam. l - 5 mill. 



Noumea, N. Caledonia. 

 H. DENDROBIA, Crosse. PL 54, fig. 1. 



Sublimate, very thin, pellucid, subhyaline, light greenish, 

 corneous, suture moderately impressed ; whorls 5^, somewhat 

 flattened, the last obsoletely subangulated. Diam. 5 mill. 



N. Caledonia. 

 H. SAMOENSIS, Mousson. PL 54, figs. 2-4. 



Scarcely perforate, rather thin, smooth, scarcely striulate, 

 a little shining, brownish corneous, suture deep ; whorls 5, slowly 

 increasing, rounded, the last a little descending, flattened belotf, 

 lighter in the centre. Diam. 3 mill. 



Marquisas, Samoan, Tonga, Viti and Ellice Islands. 



Figured from a specimen. Mr. Garrett (Jour. A. N. S. Philad., 

 viii) considers it probably a Microcystis rather than a Conulus. 



H. PiNNOCKi, Liardet. PL 54, figs. 5, 6. 



Perforate, corneous yellow ; whorls 6, flattened, spirally 

 striated, periphery carinated, base convex and smooth. 



Tai'iitnni, Fiji Islands. 

 H. BARKASI, Liardet. PL 54, fig. 7. 



Minute, very minutely perforate, golden horny ; whorls 5j, 

 roughly and irregularly striated, transversely ribbed, last whorl 

 acutel^ carinated, beneath slightly convex, with radiating striae. 



Taviunnij Fiji Islands. 



