1. MACEOPTTS. 43 



legs always white. Hands and feet greyish ^VMte, rarely becoming 

 black on the extreme tips of the digits. Tail with its first third 

 above sandy like the body, the rest whitish, except the extreme tip, 

 which has generally an inconspicuous black pencil. 



Skull (PL VII. fig. 1). General form stout and heavy. Brain- 

 case small in proportion to the long and heavy facial part of skull 

 (facial index about 270, as in many of the larger Kangaroos). Pre- 

 maxiUae slaiiting forwards very much. Nasals long, > narrow, and 

 straight- sided, scarcely broader behind. Interorbital region broad, 

 with a very strongly marked intej-temporal constriction, and sharp 

 well-defined supraorbital edges. Infraorbital opening very far 

 from the orbit, from 13 to 15 millim. distant. Palate with two 

 very large vacuities opposite the anterior root of the zygoma. 



Teeth large and powerful. Incisors long ; i.^ very long, the por- 

 tion behind its notch decidedly longer than that in front. P.' oval, 

 about 8 millim. in length* ; p.* (PL X. fig. 5) very large and heavy, 

 as in M. v/tlabatus, with a well-defined internal ledge. Lower p.* 

 about 8 millim. long. 



Dimensions. 



Australian. Papuan. 

 • s ^ ' s 



c?- 2- d- 2- 



/(stuffed), ^(stuffed). o(skin). 4 (skin), 



millim. millim. millim. millim. 



Head and body . . 915 765 (c.) 840 (c.) 790 



Tail 850 . . (o.) 660 (c.) 580 



Hind foot 234 200 196 179 



-p / cJ 215-234 T, t J 176-196 



Range | ^ ^^^^glO ^^"g« j ? 175-180 



Ear 64 57 58 59 



SkuU, see p. 45. 



Hab. South-eastern New Guinea, North Queensland, and 

 Northern Territory of South Australia. 



Type in collection. 



This species is very markedly distinct from any of its allies, being 

 distinguished at once by its short ears, long tail, and its generally 

 uniform sandy coloration, the numerous markings described above, 

 although apparently fairly constant, being quite inconspicuous in a 

 general view of the animal. I can see nothing in the descriptions 

 of S. ja/rdinii, De Vis, and H. crassipes. Bams., to separate them 

 from M. agilis, except that in the case of the former the term 

 " rufous " is used for parts I should call " dark sandy." I have 

 myseK examined the type of H. papuanus, Peters, at Genoa, and 

 find that it is unquestionably a young specimen of this species. It 

 wiU be seen by the list that the Museum possesses specimens of 



* Cf. the figure of the skull of " Macropus papuamis " given by Peters and 

 Doria, /. c. 



