68 



HELIX-PAPUINA. 



lunar ; peristome thin, margins subconniving, the upper arcuate, ex- 

 panded, basal reflexed, dilated and vaulted at the umbilicus. 

 Alt. 12, greater diam. 19J, lesser 15 mill. (Pfr.) 



Sachala Island, Admiralty Group. 



H. sachalensis PFR., P. Z. S. 1855, p. 114; Monogr. iv, p. 259 ; 

 1. c. v, p. 331. 



Var. b. Shell a little more elevated, distinctly carinated, having 

 2 or 3 blackish-chestnut bands. 



This unfigured species is perhaps allied to H. eddystonensis Rv. 



H. LEUCOTHOE Pfeiffer. PI. 12, figs. 22, 23, 24. 



Narrowly umbilicated, trochiform, rather thin, striatulate, and 

 having forward-descending striae above, becoming concentric on the 

 base ; whitish ; spire turbinate, apex rather obtuse ; whorls 4 J, con- 

 vex, the last slightly descending in front, acutely carinated at the 

 periphery, having a single band below the carina ; aperture oblique, 

 rhombic-lunar ; peristome expanded, upper margin thin, the basal 

 margin thickened in the middle ; columellar margin dilated, 

 purplish. Alt. 12 , greater diam. 2(H, lesser 17 mill. (Pfr.) 



New Georgia, Solomon Is. 



H. leucothoe PFR., P. Z. S. 1861, p. 192 ; Novit. Conch., p. 179, 

 t. 48, f. 7-9 ; Monogr. v, p. 330. 



H. C^ERULESCENS Angas. PI. 10, figs. 91, 92. 



Shell subperforate, conoidal, thin, obliquely striatedjand the lower 

 whorls decussated by irregular undulating striae ; bluish-gray, with 

 darker bands of the same color, changing into pale yellowish-olive 

 above and at the base, the apical whorls being dark chestnut and 

 with a flesh colored band immediately below the suture, and a 

 similar one at the periphery, with a narrow dark chestnut line in the 

 middle ; spire conical, rather obtuse at the apex ; whorls 4 2, slightly 

 convex, the last descending in front, angled at the periphery, aper- 

 ture diagonal, sublunar ; peristome white, margins converging, the 

 right scarcely flexuous, expanded, the basal one arcuate, reflexed. 



Diam. niaj. 9, min. 8, alt. 8J lines. (Angas.) 



Guadalcanar Is. Solomon group. 



H. ccerulescens ANGAS, P. Z. S. 1869, p. 624, t. 48, f. 6. PFR., 

 Monogr. vii, p. 381. 



Evidently allied to H. lienardiana. 



