HELIX-PAPUINA. 5 



f 



joined by a blackish callus ; the right margin dilated, columellar 

 margin wide, complanate. 



Alt. 24, greater diam. 29, lesser 25 mill. (Pfr.) 



Admiralty Is. 



H. congrua PFR., P. Z. S. 1858, p. 21, t. 40, f. 7 ; Mai. Bl. 1859 

 p. 14 ; Monogr. v. p. 269. 



H. CHANCEI Cox. PI. 14, fig. 70. 



Shell imperforate, conoid, faintly striated from above downwards, 

 with straight striae, and longitudinally striated with more distinct wavy 

 strise, white, ornamented on the center of the whorls with a broad 

 brown band, and around the base with a broad brown zone ; spire 

 pyramidal, black at the apex ; whorls six, the last rapidly increasing 

 in size and inflated, suddenly deflected in front, and contracted 

 behind the lip ; aperture large, irregularly ovately rounded, margins 

 approaching, lip slightly thickened and reflected ; collumellar 

 margin moderately dilated and excavated, and darkened by a black 

 callus. ( Cox.) 



Alt. 31, greater diam. 33, lesser 27 mill. 



Ysabel, Solomon Is. 



H. chancel Cox, P. Z. S. 1870, p. 171, t. 16, f. 5. 



Kesembles closely the following species in coloring, but is very 

 differently proportioned. 



H. AMPHIZONA Pilsbry. PI. 8, figs. 52, 53, 54. 



Imperforate ; turbinate-conic, the spire elevated, apex obtuse ; 

 whorls 6J, the last rounded at the periphery, descending in front. 

 Surface having light oblique growth-lines, and very close, fine, cren- 

 ulated spiral striae. Color creamy-white at suture and periphery, 

 the base and a wide band above dark brown ; earlier whorls purple- 

 black. 



This is a large solid shell ; the spire is conical, whorls somewhat 

 convex, the earlier three or four of a dark-reddish or purple-black 

 color. The last whorl has no trace of a carina. The aperture is 

 very oblique, banded inside ; peristome well expanded, reflexed, the 

 dark bands extending upon it half-way to the edge, the outer portion 

 being white ; the columella and parietal wall are dark brown. 

 Columella wide, adnate, flat, its inner edge somewhat straightened, 

 arcuate and deeply entering at the insertion. 



Alt. 34 greater diam. 30, lesser 23 mill. 



Alt. 32 greater diam. 29, lesser 23 mill. 



Solomon Is. 



