

PUPOIDES, AUSTRALIA. 145 



The typical form, from Houtman's Abrolhos, off the west 

 >eoast, has not been figured; but the shell described by Tate 

 as P. eremicola was considered the same by E. A. Smith. It 

 is a somewhat larger race (pi. 15, figs. 9, 10). Three of the 

 original lot received from Tate measure : 



Length 5.65, diam. 2.7, length aperture 2.1 mm. ; 5% whorls. 



Length 5.45, diam. 2.8, length aperture 2.13 mm. ; 5% whorls. 



Length 5.45, diam. 2.55, length aperture 2 mm. ; 5% whorls. 



26a. P. CONTRARIUS BELTIANUS (Tate). PL 15, figs. 5, 7, 8. 



"A longer and narrower shell than P. pacified, with less 

 convex whorls; rarely sinistral. Length 4.5, width scarcely 2 

 mm.; a more slender form 4.5 x 1.5" (Tate). 



Length 5.5, diam. 2.5, length aperture 2.15 mm.; 6 whorls. 



Length 4.75, diam. 2.15, length aperture 1.75 mm.; 5% 

 whorls. Fig. 8. 



Length 3.7, diam. 1.8, length aperture 1.5 mm. ; 4% whorls. 

 Fig. 7. 



Central Australia; specific localities not given (Horn Ex- 

 ped.). 



Pupa ~beliwna TATE, Trans. Boy. Soc. South Australia, 

 xviii, 1894, p. 191. Pupa contraria, dextral form, TATE, Rep. 

 Horn Sci. Exped. Central Australia, ii, Zoology, 1896, pp. 

 204, 219, pi. 18, f. 15a, 6. 



Two lots of this form received from Professor Tate show 

 wide variation in size, but no sinistral shells were included. 

 When fresh it has the usual cinnamon-brown color of the 

 .group, is glossy, with slight, irregular striation. The angular 

 lamella is an elongate tubercle united with the lip insertion. 

 The moderately wide lip is thickened within. The diameter 

 at the penult whorl is nearly or quite equal to that of the 

 last whorl above the aperture. 



From the specimens seen I would consider this specifically 

 distinct from P. c&ntrarius eremicola; but it is left asso- 

 ciated with co-ntrarius in deference to the opinions of Smith 

 .and Tate. 



