HELIX-PAPUINA. 51 



Var. TUFFETII Lesson. PL 17, fig. 42. 



Has the contour of typical eoniformis, but the color is a uniform, 

 intense blue-black ; lip bluish-white. 



" Makakabat," New Ireland. 

 H. SELLERSI Cox. PL 15, fig. 75. 



Shell imperforate, trochiform, brownish-yellow, generally or- 

 namented with two very dark-chestnut, almost black, bands, more 

 or less wide, one above and one below the sub-carinated periphery 

 of the last whorl, having sometimes between them an opaque-white 

 band ; transversely rather regularly striated backwards, decussated 

 from behind forwards by rather irregular slightly waved propor- 

 tionally broadly separated stride, more distinct on the last two whorls 

 than at the apex of the spire, whorls 5, rounded, gradually increas- 

 ing in size, suture impressed, last whorl sharply depressed at its ter- 

 mination and flattened from the periphery to its insertion ; spire 

 obtuse ; aperture ovately lunate ; peristome white margined, slightly 

 everted ; columella very slightly dilated and aduate. 



Diam. greatest 0'78, least 0'56 ; height 0*60 of an inch. ( Cox.~) 



Guadalcanar Is., Solomon Islands. 



H. sellersi Cox, P. Z. S. 1871, p. 646, t. 52, f. 9.? H. sellersi 

 DOHRN, Conchyl. Cab. p. 585, t. 172, f.9-11. 



(10) GROUP OF H. BRUMERIENSIS. 



Imperforate, turbinate or trochoidal, the last whorl descending in 

 front. Surface spirally striate or having forward-descending wrinkles. 

 Lip more or less sinuous above, often vividly colored. Aus- 

 tralia, New Guinea, Louisiade Is. 



This group comprises a considerable variety of forms, but they 

 are so connected by intermediate species as to form a perfectly 

 natural assemblage. 



H. CHAPMANI Cox. PL 1, fig. 13. 



Shell elevated-conic, imperforate, white ; the lip inwardly purple- 

 brown, at the edge deep red. 



Whorls 5J, a little convex, obliquely roughly and closely striated, 

 and sculptured with flexuous growth-lines. Last whorl obtusely 

 angulated in the middle, slightly convex beneath, shortly descend- 

 ing in front. Aperture oblique, irregularly subquadrangular, white 

 within ; peristome somewhat thickened and expanded, shortly 

 reflexed, the outer margin obtusely angulated a little above the 



