THE ROCK KANGAROO. 755 



The color of the animal is brown, mingled with gray, the gray pre- 

 dominating on the under portions of the body and the under-faces of the 

 limbs. The fore-feet are black, as is also the tip of the tail. 



The Woolly Kangaroo, Macropus laniger, has a woolly matted coat, 

 of a rusty yellow color, changing to gray upon the head and shoulders. 

 The sides of the mouth are white, and the toes are covered with black 

 hairs. The tail is uncommonly large and powerful, and is covered with 

 short hair. 



GENUS HALMATURUS. 



The Wallabee, Halmaiurus ualnbatus, is the most typical of the 

 eighteen species. It is not as large as the common or the woolly kanga- 

 roo, being only four feet six inches in total length, of which measurement 

 the tail occupies two feet. Its fur is rather long and coarse in texture. 

 The color is a darkish-brown washed with a warm rusty hue, and 

 obscurely pencilled with whitish-gray. The under portions of the body 

 are of a yellowish tint, and the feet and the wrists are quite black. The 

 dorsal third of the tail is of the same color as the back, but the remain- 

 ing two-thirds change abruptly from brown to black. 



The animal is an inhabitant of New South Wales, and is of tolerably 

 frequent occurrence in the neighborhood of Port Jackson. It is some- 

 times known by the name of the Aroe Kangaroo. 



GENUS PETROGALE. 



The genus comprises seven species of Kangaroos, which have derived 

 their generic title from their rock-loving habits. 



The Rock Kangaroo, Petrogale pcnieillada, is the most striking of 

 the group. 



The color of the animal is of a purplish-gray, warming into a rusty 

 red upon the hind-quarters. A white band runs along the throat to the 

 chest. The total length of a male adult is about four feet. The tail has 

 a tuft of dark hairs about three inches in length. The body is robust, 

 and the feet thickly covered with fur. 



