﻿EXTINCT KANGAROOS. 257 



In this the largest species the estimated length of the 

 skuU is about twelve inches, while it is further characterised 

 by the length of the last premolar considerably exceed- 

 ing that of the first tooth of the molar series. The lower 

 molars show a distinct posterior basal ledge, and the innermost 

 pair of upper incisors are much larger than either of the 

 others. 



Distribution. — New South Wales and Queensland. 



VI. MACROPUS R.^CHUS. 



P rot emtio don rcecJms^ Owen, Phil. Trans., 1874, p. 281. 

 Protemnodon atitceits^ Owen, Extinct Mamm. Australia, p. 448 



(1877). 



Macropus rcechtis, Lydekker, Cat. Foss. Mamm. Brit. Mus., pt. 



v., p. 212 (1887). 

 Closely allied to the last, of which, indeed, it may be only a 

 variety distinguished by certain peculiarities in the lower teeth. 



Distribution. — Queensland. 



VII. MACROPUS ANAK. 



Macro/us anak, Owen, Proc. Geol. Soc, vol. xv., p. 185 

 (1859); Lydekker, Cat. Foss. Mamm. Brit. Mus., pt. v., 

 p. 214 (1887). 



Protemnodon anak, Owen (in pm-te)^ Phil. Trans., 1874, p. 275. 



Protemnodon og, Owen (op. cit.\ p. 227 



Sthenurus atlas, Owen (in parte), op. cit., p. 265. 



Characters.— Closely allied to M. brehus, but generally of 

 smaller size, and frequently without the posterior basal ridge to 

 the last molar of the lower jaw. 



Distribution. — Queensland, South Australia, and New South 

 Wales. 



