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DESCRIPTION OF A NEW TREE KANGAROO. 

 By Professor F. FOERSTER and THE HON. WALTER ROTHSCHILD, Ph.D. 



(Plate IV.) 

 Dendrolagus matschiei sp. nov. 



Hair more silky than in the other species, directed forward from a whorl 

 in the centre of the back. Head, hack, base of tail, outside of forelegs, basal 

 third of hindlegs, throat and chest of a bright golden rufous brown, narrow 

 central line and flanks darker. Lower half of face and muzzle silver-grev. 

 Tips of ears, feet, inner surface of legs, abdomen, and presumably rest of under- 

 side bright golden yellow. Tail brownish golden yellow. 



Total length of skin 14o4 mm. Head and body 806 mm. ; tail 598 mm. 



Habitat. Rawlinson Mountains, German New Guinea. 



ON A NEW RACE OF ORYCTEROPUS. 



By THE HON. WALTER ROTHSCHILD, Ph.D. 



Orycteropus afer albicaudus aabsp. nov. 



Hitherto we have only been acquainted with five living races of Orycteropus. 

 These races are as follows : 



Orycteropus afer afer: Cape Colony, Natal. 



0. afer wertheri : Hinterland of Bagamoyo, E. Africa (Matschie, in Werther's 

 Mittl. Hochl. P.O. Afrika p. 266 [1895]). 



0. afer aethiopicus : Abyssinia and the Eastern Soudan. 



0. afer senegale?isis : Senegambia. 



0. afer lianssanus : Togo Hinterland. 



I have lately received a very old individual from German South- West Africa 

 which is conspicuously different from the forms mentioned above. Outwardly 

 it is conspicuous by the uniform deep brown colour of the body, and very short 

 tail, which is pure white. The head is rosy greyish brown. It differs also markedly 

 in its dentition, for it has in the lower and upper jaws only five teeth, while 

 all the others, in the lower jaw at least, have six on each side. The teeth 

 are nearest to those of 0. afer senegalensis, and the last molar is almost 

 identical, but the praemolar is large and pointed, while in the others the two 

 praemolars are small and flat. For this uew form I propose the name 0. afer 

 albicaudus. 



Total length of skin 1649 mm.; head and body 1319 mm.; tail 330 mm. ; 

 skull from basion to end of gnathion 234 mm.; palate 143 mm.; length of last 

 lower molar 10 mm., of last but one 13 mm. 



Habitat : German South- West Africa. 



