1. MAcaoPus. 23 



Halmaturus erul)escens, Sclater, P. Z. S. 1870, pp. 126 & 669, pi. x. 



(ammal), and 1871, p. 240, figs. 5 & 6 (skull) ; Owen, Phil. Trans. 



1874, p. 246 et seqq. pi. xx. figs. 1-5 (skull and teeth) ; Selater, 



List An. Zool. Soe. (8th ed.) p. 201, fig. 38 (1883) ; id. P. Z. S. 1883, 



p. 131, 1885, p. 322. 

 Phascolagus eruhescens, Owen, I. e. p. 262 (1874). 

 Osphranter " creheacens," F. O. Waterh., Hare. S. Amtr. p. 284 



(1876). 



Wailaeoo. 



Size large, form stout and heavy. Fur of medium length, rather 

 thick and coarse, directed downwards ; underfur thin and sparse. 

 Muzzle (PI. V. fig. 2) with a definite marked rhinarium, as in 

 M. antilopinus. General colour (of male) dark smoky brown, 

 strongly suffused, in South-Australian specimens, with rufous ; nasal 

 region and hack of ears nearly black ; lips, inside and base of ears 

 white or pale grey. Belly rather paler than back ; chest stiU lighter, 

 nearly white. Arms, legs, and tail very dark brown, gradually 

 becoming black distally. Central hind toe very short, almost 

 wholly hidden by the coarse black hair of the toes. 



Female (not fully adult) smaller, and much lighter- coloured 

 throughout ; general colour pale smoky grey, also often suffused 

 with rufous. Nose and back of ears not darker than body. Extreme 

 tips only of fingers and toes black. Tail greyish white, tip brown. 

 In fuUy adult females the colours probably more nearly approach 

 those of the male. The general colour of the male also appears to 

 darken very considerably as life advances. 



Skull. Muzzle with slight lateral inflation. Nasals rather broad 

 and short, their middle breadth about one third of their length, 

 their anterior end sharply pointed. Interorbital region not inflated, 

 the supraorbital edges sharp and well defined ; intertemporal con- 

 striction very narrow in old specimens. Lacrymal canal variable, 

 its opening generally partly bounded by the maxiUa. Palatal 

 foramina short, not so long as m.', entirely confined to the pre- 

 maxillae. Anterior palate with well-defined edges, the breadth of 

 its narrowest part about one half the length of the diastema. 

 Palate quite complete, its only vacuities being the invariable pos- 

 terior palatine foramina and a few minute holes in its extreme 

 postero-lateral corners. 



Teeth. Eoots of second and third incisors placed more vertically 

 than in M. giganteus. Enamel-covered part of i.^ about as high as 

 long, with an indistinct groove down the centre of its outer face. I.^ 

 long, nearly equalling the combined lengths of i.' and i.^, with one 

 external notch near its front edge, the notch often obscured. P.' 

 about 7 millim. long. P.* comparatively large and powerful. 

 Molars as in M. giganteus, with well-developed transverse ledges, 

 but the connecting-ridges smaller and sometimes absent, 



