58 HELIX-PAPUINA. 



The apical whorls of this very pretty species and the region 

 around the umbilicus are opalescent white and devoid of the oblique 

 markings and bands. In the type, the upper terminations of the 

 brownish, oblique, irregular stripes on the body-whorl are almost of 

 a reddish tint, and form, as it were, a series of spots at the suture. 

 A variety is of a uniform opalescent or greenish-white color, varie- 

 gated above with the radiating, somewhat zigzag, opaque, deep 

 cream-colored markings, which on the lower surface assume the form 

 of zones and irregular spots or blotches. In form this species bears 

 some resemblance to H. tayloriana Ads. & Rve. (Smith.') 



H. IANTHE Smith. Unfigured. 



Shell depressed-trochiform, narrowly rimate, acutely carinated at 

 the periphery, entirely white, sculptured with delicate oblique lines 

 of growth. Whorls 4, the upper a little convex, the last slightly 

 concave above and below the carina, scarcely descending in front. 

 Aperture oblique, subquadrate, acuminate at the carina ; peristome 

 slightly reflexed above, broadly expanded below, the columellar 

 margin widely dilated, nearly closing the umbilicus. Spire short- 

 conic, obtuse at the apex. Alt. 13s, greater diam. 25?, lesser 21 

 mill. (Smith.) 



New Guinea* 



H. (Papuina) ianthe E. A. SMITH, Ann. Mag. N. H. 1891, p. 452. 



In form this species is very like H. hero, but more obtuse at the 

 apex, and the aperture is not quite so acuminate. It differs also 

 from that species in the absence of color-markings and spiral striae. 

 The last whorl also is a trifle narrower, and does not descend in 

 front. (Smith.) 



H. TAYLORIANA Adams and Reeve. PI. 17, figs. 40, 41 ; pi. 2, figs. 



20, 21, 27. 



Imperforate, trochiform, thin, the spire conic ; apex mammilla^ 

 obtuse, whorls 5, the last acutely keeled, abruptly deflexed in front. 

 Surface shining, finely obliquely roughened and corrugated by ob- 

 liquely descending, anastomosing impressed lines. Cream colored, 

 becoming flesh-tinted on the spire, and yellower toward the latter 

 part of the body whorl, more or less closely speckled and obliquely 

 streaked with pinkish-brown above, the base having a band of the 

 same color, obsolete in front of the mouth, where there is a tract 

 tinted with pink, which extends inward on the parietal wall ; carinal 



