218 PUPILLA, AUSTRALIA. 



V. AUSTRALIAN SPECIES. 



The Australian Pupillae belong to the section Primipupilla, 

 being related to the signata series of Asia. They have the 

 same reticulate-pitted sculpture of the embryonic shell, and 

 an angular lamella, in form of a nodule, is generally present. 



Only two species are certainly known; P. scotti Braz. was 

 based upon an immature shell only about 1.5 mm. long ac- 

 cording to Brazier, and thus much smaller than any known 

 Pupilla. It is left here for want of any better place. 



a. Shell 3 to over 4 mm. long, 1.5 to 1.8 mm, in diameter: 

 lip reflected and thickened. 



&. Sinistral; no upper-palatal fold. Coastal, from 

 Sydney and South Australia to West Australia. 



P. australis, no. 33. 



b 1 . Dextral; upper and lower palatals present, Central 

 Australia. P. ficulnea, no. 34. 



ft 1 . Shell about 1.5 mm. long; dextral, N.-E. Australia. 



P. scotti, no. 35. 



33. PUPILLA AUSTRALIS (Angas). PL 23, figs. 13 to 19. 



Shell sinistral, obtuse at the apex, rimate-umbilicate, pale 

 brown. Whorls 7, convex, obliquely strongly striate. Aper- 

 ture semiovate ; peritreme thickened and broadly dilated, pro- 

 vided with a single parietal and a single columellar fold. 

 Length 2, width % line (Angas). 



A cylindric, and for the genus a large species, with the 

 aperture furnished with but two plicae (Angas). 



Australia: along the coast from Sydney and South Aus- 

 tralia to the islands off western Australia. New South Wales : 

 Nelson Bay (King, type loc. of P. nelsoni) and Sirius Cove 

 (Hedley), both near Sydney. South Australia: Rapid Bay, 

 in crevices of rocks (Angas, type loc. of P. australis) ; Port 

 Lincoln (Masters, type loc. of P. lincolnensis) ; Edithburg 

 (Hedley). Western Australia: Pigeon Island, near Wallaby 

 I. (Dr. Richardson) ; E. Wallaby I., and Houtmans Abrolhos 

 (J. J. Walker). Tasmania: Swansea, sand dunes (Johnston, 

 type loc. of P. tasmanica). 



