168 HELIX-HADRA. 



fleeted in front ; base rounded ; aperture roundly-lunate, pure white 

 within ; peristome white, thickened, and slightly reflected, margins 

 approximating, joined by a thin callus, columellar margin shortly 

 dilated at the base, ? covering the umbilicus. ( Cox) 



Alt. l*QS, greater diam. 1'20, lesser 1-13 inch. 



Cape Direction, North-east coast of Australia. 



If. ( Camcena) prcet ermissi Cox, Mon. Austr. L. Sh., p. Ill, t. 20, 

 f. 13. 



Closely allied to H. incei. 



H. MULGRAVENSIS Brazier. Unfigured. 



Shell umbilicated, turbinately globose, thin, smooth, very faintly 

 obliquely striated with fine granulations (only seen under the lens), 

 reddish yellow, with numerous spiral chestnut lines and bands ; spire 

 conoid, obtuse ; whorls 6, convex, last deflected in front, base sculp- 

 tured the same as the upper surface; umbilicus deep; aperture 

 diagonal, lunate, interior purplish ; peristome reflected, tinged with 

 brown, margins approximating and joined by a thin callus, col- 

 umellar margin dilated and reflected, nearly covering the umbilicus. 

 (Brazier.} 



Alt. ] in., 1 line, greater diam. 2 in. 4 lines, lesser 1 in. 2 lines. 



Large S. Palm Island, Northeast Australia. 



H. mulgravensis BRAZIER, P. Z. S. 1872, p, 21 ; Proc. Linn. Soc. 

 N. S. Wales v, p. 458, 1880. H. mulgravei Braz., HEDLEY, Proc. 

 Koy. Soc. Queensl. 1889, p. 101. 



This species is distinguished by the numerous fine reddish lines 

 encircling the whole of the shell, more numerous on the base, and 

 by the pink and brown peristome. (Braz.) 



Brazier changes the name to mulgravei, because the locality given 

 in his first description proved incorrect. See Hedley, I. c. 



H. CURTISIANA Pfeifler. PI. 47, figs. 90, 91. 



Shell narrowly umbilicated, conoid-serniglobose, solid, striate, 

 chestnut colored. Spire conoid-convex, whitish above, apex some- 

 what obtuse; suture with a white thread. Whorls 6, slowly in- 

 creasing, the last large, convex, subangulated above the middle, the 

 base somewhat flattened, descending in front. Aperture nearly 

 diagonal, rounded-lunar ; peristome scarcely thickened, narrowly 

 expanded, the columellar margin triangularly dilated above. (Pff.) 



Alt. 17, greater diam. 25, lesser 17 mill. 



" Port Curtis, Australia." (Pfr.) 



