232 PEKAMELIDJ5. 



one third of a millimetre in breadth. Underfur rather sparse, 

 slate-coloured, with yellowish tips. General colour all over coarsely 

 grizzled yellow and black, the longer, coarser hairs either with a 

 yellowish tip and a subterminal black band, or wholly black. Pace 

 quite uniform with body. Ears (PL XXI. flg. 5) short, broad, 

 when laid forward only reaching to within about 5 mUlim. of the 

 posterior canthus of the eye ; their backs brown, narrowly margined 

 with white. Metatragus long, its length about twice its breadth, 

 its tip twisted upwards and backwards, closely covered' with fine 

 soft hairs ; the transverse ridge below it deeper than usual, and 

 slightly thickened in the centre. Chin, chest, and belly white or 

 yellowish white, generally sharply separated from the darker colour 

 of the back and sides. Outer sides of limbs browij, inner sides white, 

 hands and feet brown or mixed brown and white. Soles naked, 

 except, in immature specimens, under the calcaniBum, their surface 

 coarsely wrinkled or reticulated ; a single large smooth pad at the 

 base of each of the fourth and fifth toes, and a smaller and more 

 indistinct one at the base of the conjoined second and third. Tail 

 of medium length, evelily tapering, brown above and white below. 

 Mammae 8. 



SJcull short and strongly built; muzzle short, broad, evenly tapering. 

 Nasals paraUel-sided, their greatest breadth about one fifth or one 

 sixth of their length. Interorbital region evenly convex, supra- 

 orbital edges rounded ; lacrymal bones small, but with a distinct 

 sharp-edged ridge separating each of them into an orbital and a 

 facial portion. Zygomata not much more markedly expanded in 

 the male than in the female. Palate comparatively imperfect ; anterior 

 palatine foramina reaching to just behind i."; a second pair of 

 small vacuities present between the two front premolars ; posterior 

 vacuities large, opposite ms. i & 2 ; extreme back of palate with other 

 smaller vacuities. Foramen rotundwm * directed forwards, partially 

 tubular externally. Bullae very large and inflated, completely ossified, 

 pear-shaped, the larger end lying postero-externally. Lower jaw 

 thin and slender, its posterior portion comparatively weak, and the 

 coronoid process slanting considerably backwards, its anterior edge 

 forming a very obtuse angle (110° to 120°) with a line drawn along 

 the tops of the teeth. 



Teelh small and weak. Upper i.° placed about 1 millim. from i.*, 

 its tip cylindrical, sharply pointed, quite different from the broad, 

 flat-edged anterior incisors. P.' about equidistant from the canine 

 and p.^ and about equal in size to the latter ; p.* larger than either 

 and considerably thickened internally, its outline in section oval, or 

 rounded triangular. Molars small, narrow, rounded, their cusps 

 low and soon worn off; the combined length of the flrst three from 

 9 to 10*5 millim. ; m.'' without, or with a very small and in- 



* This is the second of the large foramina in the base of the, brain-case, the 

 first or most anterior being homologous with the foramen laom-um anterius 

 + the optic foramen of the normal placental mammals. (See Flower, ' Osteol. 

 Mamm.' ed. 3, p. 240.) 



