2 1 AUSTBALIAN LAND SHELLS. 



The above description is merely a translation from Pfeiffer, who states 

 that the specimens wero "dead shells." Angas, Pro. Zool. Soc, 

 18GS, p. 521, speaks of " this strongly plicate, flattened, and widely 

 umbilicated species" as being the type of this section. 



X. SECTION PATITLA. Pfr. Vers. p. 12G. 



* II. ptychoinphala. * H. confusa. * H. Leichhardti. 



* II. eaiullacea. * H. Stranarei. * PI. bullacea. 



i. O 



* H. Franklandiensis. * H. Strangeoides. * II. Greorgiana. 



* H. Walkeri. * H. lampra. * H. lamproides. 



* H. Wellingtonensis * H. Namoiensis. * H. Harrietts. 



* H. Ramsayi. 



62. Helix ptychomphala. Pfr. Plate VII. Pig. 1, la. 

 Also Plate XVIII. Pig. 5. M.O. 

 Pfr., Pro. Zool. Soc, 1851, p. 98. 



Peeve, Cone. Icon. sp. 760. 



Shell umbilicated, depressfy-globose, rather thin, very closely rugosely 

 striated with a few nearly obsolete indications of decussating lines, 

 shining, horny, yellowish or reddish, with irregular darker trans- 

 verse streaks ; spire small, convexly rounded ; whorls 4-^, last 

 roundly-swollen, not turned down in front ; base convex, smooth at 

 the umbilicus, which is usually chestnut, and surrounded by a yellow 

 band, the opening plicated within, rather large, perspective, equalling 

 about 1 -6th the diameter ; aperture moderately oblique, irregularly 

 hmately-oval, higher than broad; peristome simple, thin, columellar 

 margin rather straightly ascending, callous, moderately dilated and 

 reflected. 



Diameter, greatest 1*15 j least l'OO ; height - 60 of an inch. 



Habitat. Cape Upstart. MacGillivray. Wide Bay. Stutchbury. 

 Manning Eiver. Cox. 



63. Helix confusa. Pfr. Plate IV. Pig. 3 ; also Plate XVIII. 

 Fig. 4. M.O. 

 Pfr., Pro. Zool. Soc, 1855, p. 112. 



Umbilicated, conoidly-semi-globular, rather thin, very glossy, closely 

 and regularly finely striated, yellowish, reddish or reddish-chestnut, 

 with hregular radiating darker bands ; spire short, obtusely- conical; 

 whorls 4, slightly convex, last wide and inflated, not descending in 

 front, rather flattened above ; base convex, smoother and much more 

 shining than the upper surface ; umbilicus perspective, equalling 

 1-Cth of the diameter, within uniform in colour, strongly striated ; 

 aperture very nearly diagonal, roundly-lunate, pearly within, 

 margins approaching ; peristome simple, thin, scarcely dilated at 

 the columellar margin. 



Diameter, greatest l - 45 ; least 1*25; height 0-G0 of an inch. 



Habitat. Ipswich. Masters. Wide Bay. ICing. Cape Upstart and 

 Upper Richmond River. MacGillivray. 



Pfeifter remarks that it differs from the nearly allied .IT. ptychomphala, 

 in having the stria? straight, and not undulated, in the last whorl 



