52 HELIX-PArUINA. 



middle : <-., lamella broadly dilated, appressed, flattened, lilac-colored 

 at its inner mar-in, united with the outer lip by a blackish-brown 

 parietal callus. Alt. 34, diam. 32 mill. (Smith.') 



Rossel Island, Louisiade Group. 



H (Geotrochus) chaj>m<tni Cox. Proc. Linn. Soc. N. S. Wales, iv, 

 p. 115, t. 16, f. 2, 1879 ; /. c. 2d ser. ii, p. 1063, t. 2, f. 10, II. H. 

 (Acavus) cowliolnlri* E. A. SMITH, Ann. Mag. N. H. 5th series, 

 six, ,,. 419, t. 15, f. 4, June, 1887. 



This species is so well defined by the remarkable, contrast of the 

 color of the peristome with the white tint of the rest of the shell, 

 that it will be readily recognized. The edge of the aperture is thick- 

 nied and bright coral-red, and this, both within and without, is 

 rather deeply bordered, especially within, with purple-brown. 



(Smith.') 



The description is from Smith. The identity of coraliolabris with 



l cannot be questioned. 



H. BRUMERIENSIS Forbes. PL 1, figs. 6, 7, 8. 



Imperforate, globose-conic, thin but solid, opaque white, the lip 

 intensely black, Surface lusterless, with rude, irregular lines of 

 j-rowth, obsoletely granulated by spiral lines. Aperture very 

 oblique, white within ; upper lip roundly expanded, sinuated, baso- 

 columellar lip flat, broad, adnate for one-third the distance from 

 center to periphery. 



The shell is globose with short spire,' consisting of 4 rather con- 

 vex whorls. Suture impressed. Last whorl not angled at the 

 periphery, descending in front. The black border of the lip is very 

 wide, extending .several millimeters back of the expanded portion. 



Alt. 25, diam. 28 mill. 



J+i<1crii \cw (In'uiea, on the shores of the Gulf of Huon ; M'dl- 

 j,rf IIrbor, near Amazon Bay ; Brumer Id., Louisiade Group. 



If. Itriiiii'-ri'-nxis Foi;r,i> Voy. Kattlesnake, Append, p. 375, t. 2, 

 t'. 1. Tri:. Monogr. iii, p. 189. REEVE, Conch. Icon. f. 1448.- 

 T.MM 1 . CAN. Ann. Mns. Civ. Genov. xix, p. 156. ANGAS, P. Z. S. 

 1S7G, p. 48!). SMITH, Ann. Mag. N. H. 5th ser., xix, p. 419, 1887. 



A white, lu-terlrss shell with deep black lip. Although this spe- 

 ei< s is ])l;ieed in Acavux by Tapparone Canefri and some others, it is 

 a true J'ujmiiin, closely allied to H. diomedes, zeno, naso, etc., 

 mainly in the rounded instead of angular periphery. 



