1. MACBOPXJS. 17 



Macropus labiatus, F. Cuv. Dents Mamm. p. 137, pi. xliii, a (teeth) 

 (1825); Less. Mm. Mamm. p. 225 (1827). 



Macropus ocydromus, Qould, Ann. Mag. N. S. (1) x. p. 1 (1842) ; 

 Gfray, lAst Mamm. B. M. p. 87 (1843) ; Gilbert, P. Z. 8. 1844, 

 p. 33 (habits) ; Qould, Mamm. Austr. ii. pis. iii. & iv. (animal) 

 (I860), and Introd. i. p. xxix (1863) ; Qerrard, Cat. Bones Mamm. 

 B. M. p. 124 (1862) ; Krefft, Mamm. Austr. text to pi. x. p. 1 (1871). 



Yerbua kanguru, Forst. Descr. Anim. p. 367 (1844). 



Geeat Geey EAUeAEOO, 



Size large, form comparatively slender and graceful. Fur short, 

 close, and rather wooUy, its direction on the fore part of the body 

 variable, not constant as in the coarser-haired species. Muzzle 

 hairy (see PI. V. fig. 1), the hair coming down between the nostrils 

 nearly to the Up, and leaving only a narrow naked edge along the 

 nostnls. General colour grey-brown, underside and limbs nearly 

 white. Pace coloured like back, a rather darker "whisker-mark" 

 on sides of nose. Back of ears generally rather lighter than the 

 head in Western, and darker in Eastern specimens, but this ap- 

 parently far from constant. Arms and legs white or greyish white 

 down to metacarpus and metatarsus ; fingers and toes gradually 

 becoming nearly black at their tips. Central hind claw long and 

 strong, projecting more than an inch beyond the tip of the toe and 

 showing quite clear of the hairs. Tail brown, gradually darkening 

 to the extreme tip, which is quite black. 



Female coloured like male. 



Skull. Muzzle long, conical, the waUs of the nasal chamber 

 swollen, but much less so than in M. antilopinus. Nasals long, 

 broadening behind, their posterior about half as much again as their 

 middle width, the latter going from 3| to 5 times into their length. 

 Interorbital region swollen, the supraorbital edges smoothly rounded. 

 Intertemporal constriction never very strongly marked, its least 

 breadth always nearly or quite equal to the combined breadths of 

 the two nasals. Openiag of laerymal canal entirely in the lacrymal 

 bone. Palatal foramina short, not reaching backwards to the 

 maxiUo-premaxillary suture. Anterior palate long and narrow, its 

 least breadth about one third of the diastema, its edges well defined 

 though not sharp. Posterior palate fairly complete, two small 

 narrow vacuities generally present just in front of the palato- 

 maxillary suture, and numerous minute holes in the bone 

 behind it. 



Teeth. Boots of the first pair of incisors far apart, so that their 

 tips converge at a considerable angle. Eoots of i.^ and i.' slanting 

 markedly backwards ; enamel-covered portion of i.^ very short, its 

 longitudinal as great as its vertical diameter. I.' very long, its 

 edge equal to or greater than the combined lengths of i.' and i.^, 

 and with two distinct notches on its outer side, the posterior notch 

 about the centre of the tooth. P.' hourglass-shaped, its length 

 equal to or exceeding that of p.*. P.'' small, only about 7-8 millim. 

 long, and proportionately narrow, early deciduous. Molars with 

 well-defined ridges and hollows, their anterior transverse ledges 



