﻿EXTINCT KANGAROOS. 255 



molars ; but it is not improbable that the fossil and living 

 forms pass imperceptibly one into the other. 



Distribution. — Australia. 



II. MACROPUS FERRAGUS. 



Pachysiagon ferragus, Owen, Extinct Mamm. Australia, p. 449 



(1879)- 

 Maci'opus ferragus, Lydekker, Cat. Foss. Mamm. Brit. Mus., 

 pt. v., p. 230 (1887). 



An imperfectly known species, allied to the preceding, but of 

 somewhat larger size. 



Distribution. — Queensland and New South Wales. 



III. IMACROPUS ALTUS. 



Fhascolagiis alius, Owen, Phil. Trans., 1874, p. 261. 

 Mac7'opus alius, Lydekker, Cat. Foss. Mamm. Brit. Mus , pt. 

 v., p. 223 (1887). 



Characters. — This large species is nearly allied to the existing 

 Mac7'0pus robusius, in which the upper molars have no longi- 

 tudinal bridge between the anterior basal ledge and the first 

 transverse ridge ; the last premolar being small, and (as in M. 

 giganieus) frequently shed in the adult. To M. robustus the 

 present species appears to bear a relation similar to that held 

 by M. tiiati to M. giganieus. 



Distribution. — New South Wales and Queensland. 



IV. MACROPUS COOPERI. 



Osphranier cooperi, Owen, Phil. Trans., 1874, p. 261. 



Macropus cooper i, Lydekker, Cat. Foss. Mamm. Brit. Mus., pt 

 v., p. 224 (1887). 



