140 PUPOIDES, AUSTRALIA. 



According to Mousson this species is less cylindric than 

 calaharicus. Aside from the size, it resembles Pupa senega- 

 lensis Morelet, but the whorls are less convex, the form less 

 elongate, the shell more delicate, the margins of the aperture 

 less reflected, finally the size is notably smaller. I have not 

 seen specimens. 



Dr. Boettger reports it from Hoeis, dead shells taken by 

 Dr. P. Hermann. They are somewhat larger, alt. 3% to 4*4, 

 diam. 2 mm., 5^ whorls. 



III. AUSTRALIAN SPECIES. 



In this series the angular tubercle is somewhat more united 

 with the lip-insertion than in Asiatic or African species, but 

 it is more distinctly developed and less united than is usual 

 in the American. While the species show considerable variety 

 of size and form, they appear to be closely inter-related, and 

 presumably of common ancestry. 



The author is indebted to the late Professor Ralph Tate 

 and to Charles Hedley for many specimens. 



1. Shell dextral 2. 



Shell sinistral 4. 



2. Solid, partly whitish, the later whorls somewhat flattened ; 



5.5 to 6.35 mm. long ; South Australia. 



P. adelaida, no. 24. 



Rather thin, brown or corneous-brown, whorls convex; 3.7 

 to 5.5 mm. long 3. 



3. Central Australian desert region. P. c. beltianus, no. 26a. 

 West, north and east coastal regions. P. pacificus, no. 25. 



4. Conic-turrite, 4.5 x 2 to 5.65 x 2.7 mm. P. contrarius, no. 26. 

 More slender, cylindric-turrited 5. 



5. Head of the Great Australian Bight; 4.5 x 1.5 mm. 



P. myoporina?, no. 27. 

 Central Australia; 4 to 4.5 x 1.7 mm. P. ischnus, no. 28. 



24. PUPOIDES ADELAIDE (Ad. & Ang.). PL 15, figs. 1, 2. 



Shell turrited, pupiform, dilated in the middle, umbilicate, 

 whitish-bay; whorls 6, convex, longitudinally streaked (stri- 



