142 PUPOIDES, AUSTRALIA. 



ture semioval, toothless ; peristome narrowly expanded, white- 

 lipped within, the right margin shortly curved above, some- 

 times with a contiguous callous tubercle; columellar margin 

 wider, spreading. Length 4^, diain. 2y 3 , aperture l*/ 3 mm. 

 long (Pfr.). 



Australia: Narrabri, N. S. Wales, the coastal plain and 

 islands of Queensland and Torres Strait ; West and Northwest 

 Australian coast and islands. 



Pupa pacifica PFEIFFER, Proc. Zool. Soc., 1846, p. 31; 

 Monogr. Hel. Viv., ii, 309 ; iii, 532 ; Conchy lien- Cabinet, Pupa, 

 p. 163, pi. 19, f. 26-28. HEDLEY & MUSSON, Proc. Linn. Soc. 

 N. S. Wales (2), vi, 1892, p. 558. E. A. SMITH, Proc. Malac. 

 Soc. Lond., i, 1894, p. 9Q.--Bulimus pacificus PFR., Monogr., 

 i v? 4i4._Cox, Mon. Australian Land Shells, 1868, p. 68, pi. 

 13, f. 3. BRAZIER, Journal of Couch., i, p. 272; Proc. Linn. 

 Soc. N. S. W., i, 1877, p. 127. E. A. SMITH, Zool. Voy. Ere- 

 bus and Terror, 1875, Mollusca, p. 3, pi. 4, f. 8 (Pigeon Is.). 

 Buliminus fallax Say, HEDLEY, Proc. Roy. Soc. Queensl., v, 

 1888, p. 64Pupoides pacificus (Pfr.) PILSBRY, Proc. A. N. 

 S. Phila., 1900, p. 426, f. 1 (Facing 1.). --Buliminus (Chon- 

 drula) lepidula ADAMS & ANGAS, Proc. Zool. Soc. Lond., 1864, 

 p. 38Bulimus lepidula Ad. and Aug., Cox, Mon. Australian 

 Land Shells, 1868, p. 69, pi. 19, f. 14a, ft. 



The color varies from chestnut-brown to a pale, almost 

 "corneous" tint. It is usually transparent enough to see the 

 axis or the dried animal faintly through, though some are 

 nearly opaque. In its upper third the outer lip is more 

 curved and decidedly narrower ; below that it is more widely 

 reflected, with a well-developed callous rib within. The 

 specimens from Mapoon, on the Gulf of Carpenteria, and 

 from Forrest River, West Australia, have the lip narrower 

 than those seen from the east coast. If this proves constant 

 they might be separated as a race lepidula. 



P. beltiana Tate is more elongate than P. pacifica, but in 

 some specimens the difference is not great. 



The angular lamella forms a shortly entering tubercle, and 

 is always present in adult shells, so far as seen. 



In most of the lots examined the shape varies from regu- 



