138 HELIX-HADRA. 



elevated, suture impressed; whorls 5, convex, the embryonic 1| 

 smooth, the last not descending, rounded, at the periphery indis- 

 tinctly subangulated, the base less strongly striated. Aperture 

 rotund-lunar, white within ; peristome simple, whitish, the margins 

 distant, columellar margin dilated, reflexed in a vaulted manner, 

 partly closing the narrow umbilicus, basal margin a little reflexed, 

 outer margin thin, rather acute. ( Crosse.*) 



Alt. 11, greater diam. 14*, lesser 12 mill.; length of aperture 8, 

 greatest width 7 mill. 



Habitat unknown. 



H, plethorica CROSSE, Journ. de Conchyl. 1868, p. 175 ; I. c. 1869, 

 p. 392, t. 12, f. 2, 



H. GREENHILLI Cox. PI. 43, figs. 45, 46. 



Shell umbilicated, globosely-turbinated, smooth, obsoletely striated,, 

 under the lens are manifested minute undulating lines, closely packed 

 together, reddish-chestnut above, greenish-yellow below ; whorls 6, 

 the last very large, convex, the others only slightly convex, aperture 

 lunately-sub-circular ; peristome thin, moderately reflected, colu- 

 mellar margin dilated at the base, almost covering the umbilicus ; 

 lip white within, greenish yellow without. (Cox.) 



Alt. 0*90, greater diam. 1*20, lesser 1 inch. 



Upper Dawson River, Queensland. 



H. greenhilli Cox., Journ. de Conchyl. 1865, p. 46 ; Monogr. 

 Austr. L. Sh., p. 40, t. 9, f. 1 ; t. 18, f. 8. 



In general appearance, says Cox, very like H. pachystyloides, but 

 differing from that species and all other Australian land shells by 

 the wavy lines of sculpture. 



H. COXEN.E Brazier. PL 33, fig. 70. 



Shell umbilicated, somewhat turbinately globose, obliquely stri- 

 ated, minutely granulated, shining, thin, dirty yellow ; whorls 6,. 

 convex, suture impressed, the last whorl large, obtusely carinated at 

 the periphery, base roundly convex, with the strise running into 

 the deep funnel-shaped umbilicus ; aperture oblique, ovately lunate, 

 interior white ; peristome white, thickened, margins approximating 

 and joined by a thin white callus, the right thin and descending 

 below the center, columellar reflected slightly over the umbilicus. 

 (Brazier.^) 



Alt. 10, greater diam. 14*, lesser 13 lines. 



Johnstone River, Queensland, in the scrubs. 



H. coxence BRAZIER, P. Z. S. 1875, p. 32, t. 4, f. 5. 



More carinated than the preceding forms. 



