40 AUSTRALIAN LA1\ T D SHELLS. 



102. Helix Greenhilli. Cox. Plate IX. Fig, 1 ; and Plate 

 XYLIL Fig. 8. M.O. 



Cox, Pro. Zool. Soc, 186-j. 

 Jour, de ConchyL, I860, p. 4G. 



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. 



Diameter, greatest l - 20; least 1.00; height 0*90 of an inch. 



Habitat. Upper Dawson River, in Queensland. Greenhill. 



In general appearance very like II. pachystyloides, but at once dis- 

 tinguished from that species, or any other Australian land shell, by 

 the wavy lines of sculpture. 



134. 



103. Helix pomum. Pfr. Plate IV. Fig. 7. M.C. 

 Pfr., Symbol, Vol. II., p. 3.7, 1842. 



Helix sphseroidea. Le Guillou, Revue. Zool., 1845, p. 188. 



Helix Urvillei. Hombr. et Jaeq., Yoy. an Pole Sud., Yol. Y., p. 1. 



PI. 3. Fig. 1:}, 18.34. 

 Peeve, Cone. Icon. sp. 362. 



Shell narrowly umbilicated, globular, solid, glossy, obsoletely wrinkled 

 with hues of growth and still more faintly with transverse lines 

 sometimes wanting, covered uniformly with a tawny -yellow epidermis, 

 occasionally reddish, and frequently paler at the base ; spire very 

 short, obtuse, suture irregularly crenulated ; whorls 4-k to 5, convex, 

 rapidly increasing, the last inflated, suddenly deflected in front, 

 narrowly channeled out near the umbilicus; aperture nearly diagonal, 

 Innately-rounded ; peristome Avliite, moderately thickened and slightly 

 everted, the dilated coiumellar margin with a wide tooth-like en- 

 largement internally, and externally, nearly covering the umbilicus. 



Diameter, greatest 1-60; least l - 35 ; height loO of an inch. 



Habitat. Port Essington. Mac Gill ivray. Arnheim's Land, iS.W. 



Australia. Cox. 

 Representing H. pachystyla of the N.E. coast. 



104. Helix pachystyla. Pfr. Plate VI. Fig. 8. M.C. 

 Pfr., Pro. Zool. Soc, 1845, p. 71. 



Peeve, Cone. Icon. sp. 364. 

 Shell imperforate, globular, solid, glossy, faintly wrinkled with lines of 



