GASTROCOPTA, AUSTRALIA. 157 



Series of G. pediculus. 



Columellar lamella horizontal, subrnedian. 



G. Huirgarttac and G. moretonensis are lost species, of 

 which the eolumellar structure is not known. Until new col- 

 lections are made in the type localities, one can do no more 

 than copy the original descriptions and figures. 



94. GASTROCOPTA STRANGEI (Pfeiffer). PI. 26, figs. 3 to 6. 



The shell is sinistral, rimate, oblong-conic, striatulate, 

 glossy, hyaline ; spire coiivexly turrited, the apex rather acute. 

 Whorls 5, a little convex, the last about % the length, ribbed 

 in front, the base of a somewhat swollen compressed shape. 

 Aperture subvertical, large, truncate-oval, nearly 7-toothed : 

 two close together on the parietal wall, 2 on the columella, 

 and 3 deep within the outer and basal margins. Peristome 

 white calloused, expanded throughout. Length 3, diam. 1% 

 mm. (Pfr.). 



Australia: Gordon (=- Garden) Island, Port Jackson 

 (Strange, in Cuming and Pfr. coll.). Clyde River, Para- 

 matta, Port Stephen, and many localities in the vicinity of 

 Sydney, as Darling and Glebe Points, Lyndhurst, Chatsworth, 

 South Creek, N. S. W. (Masters, Cox) ; Balmoral Beach (Ch. 

 Hedley). Narrabri (C. T. Musson). 



Pupa strangei PFR., Monographia Heliceorum Viventium, 

 iii, 1853, p. 560 ; iv, p. 686 ; Proc. Zool. Soc. Loud., pt. xx, 1852, 

 p. 69 (May 23, 1854) ; KUSTER, Couchyl. Cab., p. 179, pi. 21, 

 f. 20, 21. Cox, Monographia Australian Land Shells, 1868, 

 p. 80, pi. 14, f. 15, loo- (bad) ; exclusive of "dextral variety." 

 -SMITH, Zool. Voy. Erebus & Terror, 1875, p. 3, pi. 4, f. 8 

 (bad). Bifid arm strangei Pfr., PILSBRY, Proc. A. N. S. Phila., 

 1900, p. 426, fig. 4. 



This common species in New South Wales is readily known 

 by the large size, sinistral coil and simple eolumellar lamella. 



The angular lamella approaches the middle of the parietal, 

 and is united thereto by a callous, the whole having the shape 

 of the letter "y". The union is less complete in specimens 

 seen from Sydney (pi. 26, fig. 3) than in those from Narrabri, 

 an inland locality (pi. 26, figs. 4, 6). The eolumellar lamella 



