﻿254 ALLEN'S naturalist's LIBRARY. 



Protemnodo7i anak {in parte)^ Owen, Phil. Trans., 1874, p. 



275- 

 Sthemirus aflas, Owen, Phil. Trans., 1874, p. 264; Lydekker, 



Cat. Foss. Mamrn. Brit. Mus., pt. v., p. 232 (1887). 



Characters. — This genus and species, while agreeing with Fro- 

 coptodon in the characters of the last premolar tooth, differs in 

 having by the two branches of the lower jaw united only by liga- 

 ment, and in the spatulate form of the lower incisor teeth, which 

 resemble those of Macropus^ and probably had a similar scissor- 

 like action against one another. The molar teeth are devoid 

 of vertical foldings of the enamel, and are very short and wide; 

 the longitudinal bridge connecting their two transverse ridges 

 being very imperfect, and the anterior basal ledge of the upper 

 molars being unconnected by such a bridge with the first trans- 

 verse ridge. In size the species was large, the skull being 

 probably about a foot in length. 



This genus forms a connecting link between the existing 

 Macropus and the extinct Frocopfodon. 



DistriT)utioii. — Queensland and New South Wales. 



GENUS MACROPUS {siipn\, p. 14). 

 I. MACROPUS TITAN. 



Macropus titan, Owen, in Mitchell's Australia, vol. ii., p. 360 

 (1838) ; Lydekker, Cat. Foss. Mamm, Brit. Mus., pt. v., p 

 225 (1887). 



Characters. — Resembling the existing Macropus giganteus (to 

 which it is in all respects closely allied) in the extremely small 

 size of the' last premolar tooth. This species is distinguished by 

 its superior dimensions, and by the very general occurrence of 

 one or more vertical grooves on the hinder aspect of the lower 



