MACEOFUS PROPER. 791 



the hairs at the tip do not form a distinct tuft as in 

 H. penicillatus; the hairs on this part average at 

 about half an inch in length, or a. little more. The 

 ears are furnished with whitish hairs within, excep- 

 ting near the margin, where they assume a yellow 

 tint ; externally the fur on the ears resembles that of 

 the upper surface of the head. 



Length of adult male, from nose to root of tail, 

 18 inches; tail, 12 inches; tarsus, (without claws) 

 3 inches; ear, 1 inch; nose to ear, 2 inches 10 lines. 



Found near Northam, interior of Western Austra- 

 lia. 



The Hypsiprymnus Lesueuri of Quoy and Gaimard 

 is founded upon a skull in Direk Hastog's Island. 

 In size and general form this skull greatly resembles 

 that of the H. Whitei, but the tympanic cavity is said 

 to be larger, the zygomatic arches broader, and the 

 palate shorter. 



GENUS MACROPUS. 



SECTION, OR SUBGENUS, 1. 



Macropus proper. 



The species of this section are distinguished by 

 the tip of the muzzle being hairy, the naked portion 

 being confined to a narrow space around the openings 

 of the nostrils, and a small space between them : it 

 contains some of the largest and also some of the small- 

 est species of Kangaroos.* 



* Mr. Gray, in his definition of this group, mentions as one 

 of the characters, a peculiarity in the incisors of M. giganteut, 



