AUSTKALIAN LAND SHELLS. 39 



round the umbilicus, or following the course of the suture, it is a 

 muck thinner, lighter, and less solid shell ; but the two species are 

 easily distinguished by the animal, on which more stress should be 

 laid in the determination of species. In hopes of having the species 

 determined, I forwarded to the late Mr. Hugh Cuming, to whom I 

 am indebted for many similar acts of kindness, a number of speci- 

 mens ; the greater number of them were returned to me, labelled 

 H. monaoha of Pfr., and the others H. corneo-virens ; but they do not 

 agree with the descriptions of those species as given by Pfeiffer. A 

 number of specimens of a shell lately added to the Australian 

 Museum from Eastern Creek, about 20 miles from Mulgoa, by 

 Mr. Masters, so thoroughly agree with the general characters I 

 have given of this species, except, that they have the colouring round 

 the umbilicus, and following the line of suture as in H. Gragi, which 

 makes it very doubtful to which species these specimens should be 

 refeiTed. 



100. Helix Scotti. Cox. Plate X. Fig. 4, 4 a. M.C. 

 Cox, Catalogue of Australian Land Shells, 1864, p. 36. 



Shell narrowly umbilicated, turbinateby-globose, radiately-roughly 

 striated, minutely granular throughout, sub-pellucid, chestnut 

 coloured, paler at the apex ; whorls 6, slightly convex, the last 

 tumid and rounded; aperture lunately-sub-circular; peristome mode- 

 rately thickened, straight, partly reflected, white within. 



Diameter, greatest 1'50; least l - 25 ; height - 90 of an inch. 



Habitat. Mount Keera, AVollongong, N.S.W. Mrs. Edxoard Forde. 



Closely allied to the larger specimens of II. coriaria, found at the 

 Clarence River Heads. 



101. Helix Stufcchburyi. Pfr. Plate X. Pig 10. M.C. 



Pfr., Pro. Zool. Soc, 18.36, p. 386. 



Shell perforated, depressly-globose, rather thin, smooth, translucent, 

 slightly shining, radiately rugosely ribbed, yellowish-horny, with 

 two spiral red bands one above the periphery, the other at the 

 suture ; spire short, convexly-conoid, obtuse at the apex ; whorls 5, 

 slowly increasing, convex, last rounded, slightly descending in front ; 

 aperture diagonal, roundly-lunar; peristome simple, thin, margins 

 scarcely converging ; columella callus, white, slightly expanded, 

 triangularly dilated above, and ^ concealing the moderately sized 

 umbilicus. 



Diameter, greatest 0'68 ; least 0-60 ; height 0-35 of an inch. 



Habitat. Drayton Range, Queensland. Stutchbury. Upper Dawson 

 Paver, Queensland. Greenh ill. 



Pive specimens from the second locality agree so well with Pfeiffer's 

 description, that I do not hesitate to consider them as identical, 

 although I can see none of the "minute granulations under the lens," 

 and no mention is made of the shell being radiately ribbed or 

 marked, as indeed nearly all Australian DTelices are. 



