178 THE KANGAROOS. 



animal here described, and, by further investigations, 

 we also came to the conclusion that it has received 

 at different times, all the several names which pre- 

 cede the present description. 



A drawing of the skull of H. Peronii, which Mr. 

 Owen had made from the original specimen, con- 

 tained in the Paris Museum, is now before me^ and 

 I find to agree perfectly both with the skull of the 

 Poto-Roo, and with that figured by Pander and 

 Dalton, as the Hypsiprymnus murinus of Illiger. 

 Now Illiger gives as the type of his genus Hypsi- 

 prymnus, the H. murinus, and in his definition men- 

 tions as a character " cauda mediocris, squamata" a 

 character which is only found in one other species 

 of Hypsiprymnus a species brought by Mr. Gould 

 from a part of Australia which is but little frequented, 

 viz. King George's Sound. 



The description given by Mr. Ogilby of his H. 

 setosus, agrees with the present animal, and that 

 author says that the H. setosus, " is known in the 

 colony of New South Wales by the native name of 

 Bettong Kangaroo." This name, I have before obser- 

 ved, is attached to specimens of the present animal in 

 the Museum of the Linneean Society. 



The H. myosurus of Mr. Ogilby also agrees with 

 the present species in every particular, excepting 

 that the skull is rather larger, a difference which Mr. 

 Gould suggests is probably sexual, the males of all 

 the Kangaroos being larger than the females. The 

 original of Mr. Ogilby's description of H. myosurus, 

 is a male ; the Poto-Roo of White was a female, and 



