672 Mr. O. Thomas on 
Matschie’s Thylogale lauterbachi, on the other hand, also 
from this part of New Guinea, seems to be a low-country 
form, with short fur only 15 mm. in length. A skin of it, 
without skull, was obtained by Mr. Keysser on the Sattelberg. 
6. Macropus heyssert lauterbachi, Matsch. 
?,R.6. Sattelberg, May 1907. 
7. Dendrolagus matschiet, Forst. & Rothsch. 
Young, R.M.11. Saruwaged Mts., 2000 m., August 1914. 
8. Dorcopsulus * rothschildi, sp. n. 
2, R.5. Rawlinson Mts. 
9, R.M. 3, 15, 20. Saruwaged Mts., 3000 m., August 
1914. 
Fur very long, soft, and glossy ; hairs of back about 35 mm. 
in length. General colour above dark shining chocolate- 
brown, near “ Mars-brown,” not the more smoky greyish 
brown of D. vanheurni, bases of hairs greyer. Under surface 
dull whitish brown, the belly browner, the chest and inguinal 
region lighter. Face quite like back. Lars thickly haired, 
dark brown, their inner surface lighter. Outer side of limbs 
and hairy part of tail uniformly dark brown. 
Skull rather larger than that of vanheurni, smaller than 
that of macleayi. Nasals less projecting mesially beyond the 
maxillo-frontal suture than in either of the other species, 
their hinder edge nearly transverse ; secator rather shorter 
than in the other species, the four specimens available having 
this tooth 8°8, 7-6, 84, 8°5 mm. in length as compared with 
9°8, 9°9 in macleayt and 9-2 in vanheurnt. 
Dimensions of the type (measured on the skin) :— 
Head and body 480 mm. ; tail 270; hind foot 94 ; ear 34. 
Skull: greatest length 85; condylo-basal length 80°5; 
zygomatic breadth 42°5; palatal length 48; palatal foramina 
3°8; length of secator 7:7; combined length of mst? 12-4. 
Hab. of type. Saruwaged Mts., 3000 m. 
Type. Adult female. Original number 20. Collected 
August 1914. 
This well-marked species is decidedly browner and less 
* With some hesitation I accept Matschie’s separation under the above 
name of the macleayt group of Dorcopsis, on account of the short muzzle 
of the skull, the less elongate secator, which only just equals m+ m? 
instead of m'-+m?+half m°, and the more extended and abrupt nakedness 
of the tail, 
