PETROGALE INORNATA, Gould, 
Unadorned Rock-Wallaby. 
Upper Half of the Animal, of the size of life. 
The northern as well as the southern portions of the Australian eontinent are evidently 
tenanted hy members of that section of the Kangaroos to which the present species 
belongs ; for although a single example only has yet reached me from the north coast, 
it is sufficient to show that such is the case. 
The P. inornata is a true Petrogale, and, like the P. concinna, merely differs from its 
congeners in the total absence of stripes or markings on its sides. 
This plain-coloured but rare species is one I would recommend to the notice of the 
naturalists and explorers who may visit the north coast of Australia, where it was dis- 
covered by Mr. Bynoe. 
A very reduced figure of the entire animal will be found on the next Plate. 
