324 RKCORDS OF THE AUSTRALIAN MUSEUM. 



the 13th June, 1908, one is a slightly swollen oval, the other 

 beiug more elongated and pointed at the smaller end — as will 

 be seen on the accompanying plate — the shell being close-grained, 

 smooth and lustrous. They are of a dull white ground colom-, 

 over which is distributed numerous freckles, small irregular 

 shaped spots, and a few larger blurred markings of different 

 shades of brown, intermingled with a few underlying spots of 

 dull bluish-grey. In the smaller specimen the markings are 

 slightly more thickly and evenly disposed; in the other there is 

 a tendency to form an irregular zone at the larger end; many of 

 the markings are penumbra! or partially overlie one another. 

 Length— (A) 1-02 x 0-77 inches; (B) M3 x 0-8 inches. Another 

 set of two taken by Mr. Gibson at Lake Way, Western 

 Australia, on the 19th August, 1906, are thickly spotted over 

 the entire surface of the shell with different shades of brown and 

 wood-brown, and intermingled with a few superimposed and 

 underlying markings of pale violet-grey. Length — (A) IT8 x 0-8 

 inches ; (B) 1-17x0-8 inches. 



