88 HELIX. 



6, a little convex, the last with serrated carina, base rounded about 

 the umbilicus. Diam. 6'5 mill. 



Silhouette IsL, Seychelles. 



H. APIA, Jacquinot. PL 17, figs. 45, 46. 



Moderately umbilicated, somewhat solid, lightly striate, light 

 fulvous, with or without two chestnut bands, suture narrowly mar- 

 gined; whorls 5?, scarcely convex, the last not descending, acutely 

 carinated, base slightly convex, impressly lineated towards the 

 carina. Diam. 17 mill. 



New Hebrides. 



H. EUDORA, Angas. PI. 17, figs. 47, 48. 



Bather widely, deeply umbilicated, somewhat solid, irregularly, 

 obliquely, closely and sharply striate, light chestnut colored ; whorls 

 6, a little convex, the last with carinated periphery, not descend- 

 ing, base convex ; aperture violaceous, peristome white. 



Diam. 23 mill. 



New Georgia. 



H. SEMICONVEXA, Pfr. PI. 17, fig. 49. 



Moderately umbilicated, rather thin, minutely striated, waxy 

 shining, chestnut colored, suture impressed, distinctly margined ; 

 whorls 4?, a little convex, the last not descending, periphery with 

 compressed carina, base inflated ; aperture bluish. Diam. 14 mill. 



Solomon's Is. 



H. MATURA, Pfeiffer. PI. 17, fig. 50. 



Rather widely umbilicated, thinnish, striulate, dark chestnut 

 colored, suture carinated; whorls 51, hardly convex, the last 

 slightly deflected in front, peripheral carina acute, base a little 

 convex, obsoletely angulated around the umbilicus; lip white, 

 widely thickened within the base, almost dentate. Diam. 20 mill. 



Solomon's Is. 



H. RHODA, Angas. PI. 17, figs. 51, 52. 



Moderately, deeply umbilicated, rather solid, finely, obliquely, 

 irregularly striated, fulvous brown, with pale, diaphanous, oblique 

 stripe-like spots, a suffused brown band below the suture, a darker, 

 narrower one above it, and a narrow dark band on either side of 

 the keeled periphery; whorls 6, suture narrowly margined, last 

 whorl not descending ; lip white, slightly expanded and subreflexed, 

 basal portion a little thickened. Diam. 20 mill. 



San Christoval, Solomon's Is. 



