6. DENDEOLAOUS. 93 



are so short and sparsely scattered as to give a general impression 

 of nakedness to the whole muzzle. Fur on nape, and sometimes on 

 back also, directed forwards. Anterior limhs stout and strong, nearly 

 as large as posterior ; hind feet broad, the syndactylous second and 

 third digits not disproportionaUy small as compared to the fourth 

 and fifth. Claws stout and strong, those on the fourth and fifth 

 hind toes curved like those on the hand, not straight and conical as 

 in the other genera. Tail very long, evenly and thickly haired. 



SlcuU heavily built ; muzzle short, broad, and strong. Posterior 

 palate complete, without vacuities. BuUas entirely unswoUen. 



Dentition —1 ^'^-^ P ^- P "■^•^•* M i^l^ii^ x 2 = 34. 



Incisors thick and strong ; i.^ and i.^ about equal. Canines much 

 smaller than incisors (except in D. dorianus). P.* large and stout, 

 but far shorter than in Dorcopsis. Molars as in that genus. 



Habits. Arboreal, phytophagous. 



Range. New Guinea and North Queensland. 



In their general proportions the Tree-Kangaroos present a striking 

 contrast to the other members of the present subfamily, but in 

 their essential characters they do not show any approach to the 

 arboreal Phalangeridce, to whose habits and proportions of limbs 

 they have evidently independently attained. The species are con- 

 fined to the tropical forests of New Guinea and North Queensland, 

 none of them being found in any part of temperate Australia. 



Synopsis of the Species. 



I. EXTEKNAL ChAKACTEES. 



A. Fur on back dii'ected backwards. 



a. Body, tail, and limbs black ; face nearly white 1. B. ursinus,-p.Qi. 



b. Body, tail, and limbs grey mixed, or whitish ; 



face dark. 

 a^ Back and sides dark grizzled grey .... 2. -D. inustvs, p. 95. 

 6\ Back pale grey* ; sides white 3. D. lumholtsi,^.QQ. 



B. Fur on whole of back reversed, directed forwards 4. D. dorianus, ^.QS. 



II. Ceanial Chaeactees. 



A. I.' but little exceeding i.^ and i.'' in its down- 

 ward projection. Canine much smaller 

 than i.'. 

 a. Forehead not inflated. Fronto-nasal suture 

 curved backwards. 

 a}. P.* much broader than m.' ; its poste- 

 rior much greater than its anterior 



transverse diameter 1. D. ursinus, p. 94. 



J'. P.* not or little broader than m.' ; its 

 posterior but little greater than its ante- 

 rior diameter 2. D. inustvs, p. 95. 



* ■? Occasionally more or less nifoiis or fulvous ; see below, p. 97 (footnote). 



