732 



OLDFIELD THOMAS. 



Hab. and Type as above. 



This Water-Rat differs from that of Port Moresby by its greyer and less fulvous colour, 

 and may be considered as a western subspecies of it. 



The spirit spécimens from Noord River appear to be of quite the same colour as that 

 from the Idenburg. 



Our one topotype of H. beccarii from the Key Island has the belly hairs light to the 

 base, but I am not at présent able to express a definite opinion as to the relationship be- 

 tween that animal and its New Guinea ally. 



25. Sus papuensis, Less. & Garn. 



Q 1. Skull only. Pionier-bivak, Mamberamo River. W. C. van Heurn. 

 Q 2. Skull only. Prauwen-bivak, Idenburg River. W. C. van Heurn, 



26. f Dorcopsis hageni caurina, Thos. 



0^218. Pionier-bivak, Mamberamo River. 6 January 1921. W. C. van Heurn, B. M. N c . 22. 2. 2. 

 64. Type. 



Closely allied to the typical hageni of Astrolabe Bay, but the gênerai colour is rather 

 brown than grey („light seal-brown"), the sides are as dark as the back, and the dorsal whitish 

 line extends up on to the crown, to the hair-crest just in front of the ears. The anterior 

 half of this characteristic light line is narrow, about 2 mm. in breadth, while its posterior 

 half is decidedly broader, about 7 mm. Tail dark brown above, lighter brown below. Other 

 characters apparently as described in hageni. 



Dimensions of the type, measured by Mr. VAN HEURN in the flesh. 



Head and body 640 mm. ! ) ; tail 440 ; hindfoot 143; ear 54. 



Skull, greatest length 144; basai length 129; zygomatic breadth 59.5; upper cheek- 

 teeth 43.2; p 4 15.5. 



Hab. and Type as above. 



D. hageni is a fine and remarkable species, which had not previously corne to the 

 British Muséum. The présent is a great extension westwards of its known range, and the 

 distance from its type locality, Astrolabe Bay — about 600 miles — is such that the diffé- 

 rences above noted no doubt indicate subspecific distinction. 



Dr. VAN HEURN makes the following note on this Kangaroo: 



„Rarely seen. This individual was surprised on the river-bank and was shot by a Dyak 

 before it was able to clamber up the steep wall of bush behind it/' 



\Dorcopsis lorentzi, Jent. 



cf. Q. Kloof-bivak, Lorentz River. Dr. G. Versteeg. 

 2. çT No exact locality. 



The two last spécimens are of a paler brown than usual, and are marked as „colour- 

 varieties", but I am disposed to consider that they hâve been bleached, and are not inher- 

 ently différent.] 



1) Measured on the drj' sldn, the head and body are 540. mm. in length, the tail 380, and the ear 44. 



