HELIX-CHLORITIS. 251 



H. ERINACEUS Pfeiffer. PI. 52, figs. 88, 89. 



Shell umbilicated, depressed, thin, beset with hairs on tubercles 

 arranged in quincunx ; rufescent ; spire subplane, suture simple. 

 Whorls 4-1, a little convex, the last inflated, somewhat descending in 

 front, compressed around the umbilicus. Aperture oblique, rotund- 

 lunar ; peristome fleshy-brown, thin, expanded in every part, mar- 

 gins converging joined by a thin callus, columellar margin dilated. 



Alt. 14, greater diam. 22, lesser 18 mill. (Z)o/irn.) 



New Ireland; New Georgia. 



H. erinaceus PFR. P. Z. S. 1861, p. 192 ; Monogr. v, p. 387 ; Novit 

 Conch, ii, p. 174, t. 47, f. 3, 4. DOHRN Conchyl. Cab., p. 602, 1. 175 

 f. 15, 16. 



A species generally confused with H. eustoma; the difference from 

 that species is marked. The spire is less flat; the suture is not 

 channelled, the umbilicus penetrates deeply but is not broadly 

 funnel-shaped as in eustoma ; the lip is expanded but not reflexed. 

 It is more nearly allied to H. discordialis, perhaps not specifically 

 separable. See Dohrn, I. c. 



H. LEEI Cox. PI. 49, figs. 18, 19. 



Shell with a large, open, funnel-shaped umbilicus, thin, translu- 

 cent, globosely depressed, of a dark cinnamon-brown color, trans- 

 versely rather coarsely striated throughout, and covered above and 

 below with oblique rows of prominent rather coarse setse ; spire 

 slightly raised, bluntly convex ; suture deeply impressed ; whorls 5, 

 convex, gradually increasing in size, last somewhat inflated, rounded 

 below, excavated round the umbilicus, and gradually depressed in 

 front for half the circumference of the whorl ; aperture transversely 

 oval, lip broadly expanded and slightly thickened, triangularly 

 dilated at the columella, the outer margin of which overhangs the 

 umbilicus; margins of aperture joined by a thin callus. 



Alt. 0'76, greater diam. 1-21, lesser 0'95 inch. 



Island of St. Aignan, Louisiade Archipelago. 



H. leei Cox, P. Z. S. 1873, p. 565, t. 48, f. 5, 5a. E. A. SMITH, 

 Ann. & Mag. N. H. 1889 (Vol. iv, 6th Ser.), p. 201. 



Resembles a large H. erinaceus. 



H. SUBCORPULENTUS Smith. PL 68, fig. 84. 



Shell broadly and profoundly umbilicated, rather thin, globose- 

 depressed, shining, pale brownish, paler toward the apex ; whorls 5, 



