HELIX-PAPUINA. 49 



descending in front ; carinated in front, becoming obtusely angular 

 on the latter part ; base rather flattened. Surface sculptured with 

 fine, close, obliquely descending wrinkles. Color whitish, buff or 

 rich brown, having a light zone at the periphery, and either marked 

 with dark brown, oblique zigzag stripes and spots above and below, or 

 having a band above and one below the periphery. Aperture very 

 oblique, transverse-oval, white and showing the bands within, or of 

 a uniform reddish-brown color, peristome broadly expanded through- 

 out, reflexed, white or rarely reddish-brown. 

 Alt. 22, greater diam. 31, lesser 24 mill. 



New Georgia, Solomon Is.; (and Admiralty Is. f) 



H. lambei PFR., Malak. Bl. 1856, p. 239 ; Monogr. iv, p. 200. 

 DOHRN in Coiitin. Conchyl. Cab. p. 593, t. 174, f. 1-4. H. lombei 

 (error) PFR., P. Z. S. 1856, p. 382. 



Allied to H. gaberti and H. phceostoma, but much broader and 

 more depressed than either. Scarcely two individuals are marked 

 alike. A common variation is shown in fig. 22, in which there are 

 two bands but no zigzag markings. Fig. 25 represents a rarer form, 

 in which the whole shell including lip is reddish-brown, with darker 

 flammules. Of the large suite of specimens before me the more 

 recently collected are from the Solomon Is. Two old trays (one 

 from Cuming) are marked Admiralty Is., but this locality, although 

 given by all writers above referred to, requires confirmation, in my 

 opinion. 



H. RLEXILABRIS Pfeiffer. PL 4, figs. 68, 69, 70, 71. 



Imperforate, low-turbinate, the spire conical, last whorl rounded 

 at the periphery, descending in front as far as the lower band ; 

 sculptured with very fine, close, forward-descending wrinkles ; color 

 creamy-white, with a chestnut-brown band above the periphery, 

 ascending the spire, and another below the periphery. Aperture 

 oblique, lip expanded, white. 



The spire is composed of 6 rather convex whorls, separated by 

 more or less distinctly impressed sutures. The last whorl descends 

 in front as far as, or just below, the lower brown band. The bands 

 are continuous and have smooth, well-defined edges; they are 

 prominently seen within the aperture. The lip is broadly expanded, 

 closely appressed in the vicinity of the umbilicus, which is covered 

 by a thin white callus. The columella has a thickened edge, and a 

 4 



