AUSTRALIAN LAXD SHELLS. 5 



that this is the shell described by Pfeiffer as H. subrugata, although 

 his description is too brief to ensure absolute certainty. 



8. Helix Moretonensis. Pfr. Plate X. Fig. 2, 2 a. M.C. 

 Pfr., Pro. Zool. Soc, 1854, p. 52. 



Reeve, Cone. Icon. sp. 1313. 



Shell perforated, conoidly-lenticular, very thin, sub-arcuately-plicate, 

 dull above, shining below, olivaceous or yellowish-horny ; spire 

 broadly conoid, somewhat acuminate ; suture simple, impressed ; 

 whorls 6, very slightly convex, last not descending in front, flattened 

 above, convex below, rather sharply keeled ; aperture diagonal, 

 somewhat angularly lunate, pearly within ; peristome acute, thin, 

 more or less distinctly angular in front at the columella, shortly and 

 triangularly dilated, reflected and half concealing the minute um- 

 bilicus. 



Diameter, greatest 0'50 ; least 0*45 ; height - 20 of an inch. 



Habitat. Eichmond Eiver. MacGillicray. Moreton Bay. Masters. 



A coarser, duller, and more angular shell than the two preceding species. 



III. SECTION PAKYPHANTA. Pfr. Yees. p. 122. 



* H. atramentaria. 



9. Helix atramentaria. Skuttleworth. Plate III. Fig. 2 a., 

 2 b. M.C. 

 Nanina atramentaria. Shuttl., in Mittkeilungen der Naturf. Gesellsch. 



in Bern., 1852, p. 194. 



Shell umbilicated, depressed, sub-discoid, covered with a very dark 

 blackish-purple glossy epidermis, showing numerous lines of growth, 

 most distinct about the suture, and under the lens minute rugfe 

 crossing them and occupying the whole upper surface ; spire short, 

 obtuse ; whorls 4, convex, very rapidly increasing, last scarcely de- 

 flexed in front, depressed, and inflated; below very glossy, umbilicus 

 l-5th of the smaller diameter ; aperture rather more than diagonally 

 oblique, lunately-oval ; peristome simple, the epidermis covering it, 

 the right margin produced in a flexuous manner at the centre, colu- 

 mella very shortly expanded above and reflected, to conceal about \ 

 of the umbilicus. 



Diameter, greatest 1 "40 ; least 1*10; height - 55 of an inch. 



Habitat. Mount Arnold and Bendigo, Victoria. Cox. 



This very remarkable shell, like the New Zealand Helix Busbyi in 

 miniature, resembles no other known Australian species. 



IV. SECTION HELICOPHANTA. Pfr. Yees. p. 122. 



* H. Falconari. * H. Maconelli. * H. Banneri. 



10. Helix Falconari. Peeve. Plate VI. Fig. 6. M.C. 

 Gray, Pro. Zool. Soc, 1834, p. 63. 



Reeve, Cone. Icon. sp. 355. 

 Shell umbilicated, ovate, thin, smooth, covered with a rather glossy 

 brownish, reddish, or yellowish epidermis, faintly rugosely striated, 



