* Helix nigrilabris. Tab. 4:, fig. 16. 



Helix (Xanthomelon) nigrilabris, Von Martens, Malak. 

 BUM. XVI., p. 78. 



H. Edwardsi, Cox, Monog. Austral. Zand Shells, p. 109, 

 pi. 19,/. 3,3a. 



H. (Galaxias) Meadei, Brazier, P.Z.S., 1870, jj. 662. 



Hab. Blackwood Bay, N. E. Australia (Richardson). 



The shell here figured is not a typical example of this 

 species as it lacks the sutural chestnut band, and the thin 

 callous deposit on the body whorl, and the peritreme is of a 

 bright chestnut hue, and only the former part is furnished 

 with granules, which are very small. 



Helix bipartita. Tab. i,fig. 11. 



Helix bipartita, F&russac, Hist., pi. 75,/. 1. 

 Hab. North East Australia. 



* Helix Eichardsonii, sp. n. Tub. 4,/> 14. 



Shell perforated (jierforation concealed), globosely de- 

 pressed, ratlier thin, finely striated by the lines of growth, 

 whitish, tlie last whorl encircled with ten to twelve palish- 

 brown lines (sometimes in worn specimens these are 

 diaphanous and colourles.s) one of them a little above the 

 periphery being broader, and of a deeper colour than the 

 rest ; spire moderately raised ; whorls -l-J- — 5 slowly in- 

 creasing, the last conspicuously descending near the lip ; 

 aperture very oblique, rhomboidal- lunate ; peristome white, 

 thin, shortly expanded, at the umbilical region spread over 

 the whorl in the form of a thin callosity concealing the 

 perforation and united to the lip above. 



Greatest diameter 19 mill, smallest 16 ; height 12. 



Hab. Uupuch's Is., West Coast of Australia {Richardson). 



This species is allied to H. Reiaga, (.Jray, which is said 

 to come from New Zealand, but I may add that all the 

 specimens in the British Museum, with reliable localities, 

 are from different parts of Australia. 



From H. Reinga, it differs in being of larger and thinner 

 growth, in the number of the whorls, which are not so 

 convex, being nearly one less, and in having the underside 

 of the last whorl, which is proportionally larger, more 

 flattened, especially at the umbilical region which is over- 

 spread by a broadish thin callosity, united above to the 

 outer lip. The greater deflection of tlie last whorl near 

 the mouth is another notable difference, and the peritreme 

 is thinner and more expanded. 



* Helix virgata. Tab. 4, fig. 15. 



Helix virgata, Ba Costa, Brit. Conch., p. 79, pi. 4,/. 7; 

 Jeffreys, Brit. Con. I., p. 210. 



Hab. Foul Point, North West Coast of Australia. 



(Rivhardsoii). 



There are two specimens brought from the above locality, 

 which I cannot distinguish in any particular from this 

 species. This is not the first record of its occurrence in 

 Australia, for a sinistral variety is mentioned by Mr. 



Gwyn Jeffreys as coming from New South Wales. Its 

 advent there is not to be accounted for with certainty, but 

 possibly it is an introduction of the common European 

 shell, as appears to be the case with ff. nitida, Mtiller. 



* Helix leptogramma. Tah. 4, fig. \%. 



Helix leptogramma, Pfeiffer, Mon. Hel. I., p. 322. 

 Hab. Australia {Richardson). 



* Helix Menkeana. Tab. 4, fig. 9. 



Helix Menkeana, Pfeiffer, Mon. Hel. I., p. 55. 



Hab. Cape of Good Hope. {Krauss). 



The shell here figured is that variety which is of a pale 

 horn-colour, with only the one broad, superior brown band. 

 It was presented by Dr. Kichardsou without a locality. 



* Helix cyclostom.a.ta. Tab. 4, fig. 13. 



Helix cyclostomata, Le Guillou, Rev. Zool., 1842, p. 141. 

 H. Tuckeri, Pfr., and H. strangulata, Hombr. & Jacg. 

 Hab. Blackwood Bay, Australia {Richardson). 



Helix Strangei. Tab. 4, fig. 17. 



Helix Strangei, Pfeiffer, Mon. Hel. III., p. 98. 

 Hab. Blackwood Bay, York Isles, near Cape York, 

 N. E. Australia {Richardson). 



Helix millestriata, sp. n. Tab. 4, fig. 5. 



Shell thin, horn-colour, perspectively umbilicated, de- 

 pressly orbicular, ornamented with very close arcuately- 

 radiating thread-like riblets, which are coarser on the 

 upper than the lower surface, entirely covered with 

 microscopic spiral striations which are continuous on and 

 between the riblets ; spire nearly flat, only slightly 

 elevated ; whorls five, slowly increasing, ratlier convex, 

 separated by a deepish suture, last not descending in 

 front; the umbilicus occupying one-fourth the width of 

 the base ; mouth roundly-lunate ; peristome simple, thin, 

 columellar margin a little dilated above. 



Greatest diameter 7 mill., smallest 6 ; height 3. 



Hab. Dupuch's Is., West Australia (Richardson). 



This small but prettily sculptured species is chiefly 

 characterized by tlie fine riblets, and the microscopic 

 spiral striations, which are not, as in some other .species, 

 interrupted by the riblets, but are continuous over them. 

 The inferior surface is slightly shining, the upper not so. 



ViTRiNA Freycixeti. Tab. 4, fig. 4. 



Helixarion Freycineti, Ft'r. Prodr. II., p. 20 ; Hist., pi. 

 9a,/ 3, 4; pl.%,f 2. 

 Hab. New South Wales. 



