0*2 AUSTRALIAN LAND SHELLS. 



straight, margins moderately approximating, columellar margin 

 rather widely expanded above, and reliected over A of the umbilicus. 



Diameter, greatest 0-80; least - 70 ; height 0-.35 of an inch. 



Habitat. Port Lincoln, S. Australia. Angas and Masters. 



My specimens do not vary materially in any respect. 



132. Helix Lorioliana, Crosse. Plate III. Fig. 4 a, 4 b. M.C. 

 Crosse, Journ. de Conchy!., 1863, p. 273. PI. IX. Fig. 6. 



Shell perforate, depressly-globose, rather thin, smooth, moderately 

 shining, rugosely striated, especially at the suture, pale reddish- 

 yellow, surrounded with two reddish-chestnut bands, one on the 

 periphery, the other under the suture ; spire moderate, depressly 

 and broadly-convex ; whorls 5, moderately convex, last convex, 

 rather dilated towards the mouth, descending in front ; base smooth, 

 sliining, of a paler yellow than above, and more glossy, umbilicus 

 nearly covered ; aperture extremely oblique with a horizontal ten- 

 dency, white within, shewing the two bands; peristome simple, thin, 

 expanded, margins rather approximating, columellar margin thinly, 

 broadly, and triangularly expanded above, tinged with rose colour, 

 and reflected, so as nearly to conceal the umbilicus. 



Diameter, greatest 105 ; least 0*95 ; height 0-60 of an inch. 



Habitat. Flinder's Range, S. Australia, in ravines on its western slopes. 

 Angas. 



Angas remarks of this, that it is the largest S. Australian land shell 

 yet discovered, of a yellowish-horn colour, banded with orange- 

 brown. The preceding description has been taken from a series of 

 beautiful specimens collected on Flinder's Eange by Mr. Masters, 

 not one of which agrees precisely with the figure and description of 

 Crosse, probably taken from a single specimen. His shell is very 

 much more globose, and it is described as imperforate, while in none 

 that I have seen has the umbilicus been covered over. 



133. Helix luteo-fusca. Cox. Plate XII. Fig 1, and 1 a. Aus- 

 tralian Museum. 



Shell openly umbilicated, depressed, oblicpuely rugosely striated, and 

 obsoletely granulated, thin, yellowish-brown or dark chestnut; spire 

 rather prominent ; whorls 4, regularly increasing, last whorl de- 

 pressed throughout, on which the elevation of the spire depends, 

 periphery blunt, slightly angled, base convex ; aperture diagonal, 

 lunately-rounded ; peristome simple, lip thin, margins approaching, 

 columellar margin but little everted, the opposite margin inserted 

 beneath the angulation of the second whorl. 



Diameter, greatest 065 ; least 0"50 ; height 0*33 of an inch. 



Habitat. Flinder's Eange, S. Australia. Masters. 



XXII. SECTION MACEOCYCLIS. Pfr. Vers. p. 137. 



* H. Cunninghami. * H. Miihlfeldtiana. 



134. Helix Cunninghami. Gray. Plate I. Fig. 5, 5 a. M.C. 

 Gray, Pro. Zool. Soc, 1834, p. 64. 



Griffiths, Animal Kingdom. PL XXXVI. Fig. 4. 

 Reeve, Cone. Icon. sp. 363. 

 Shell umbilicated, very much depressed, discoid, solid, rugosely 



