THE DORCA KANGAROOS, 57 
Dorcopsis chalmerst, et D. beccarii, Mik\. Macl., Proc. Linn. Soc. 
N. South Wales, vol. ix., p. 569 (1884), vol. x. p. 146 
(1885). 
Characters.—Smaller than the last, with the soft and thick fur 
longer ; hair of neck reversed. General colour dark smoky- 
grey, of variable shade; chin brown; under-parts grey or 
 greyish-white. I’ace dark grey, with a faint pale cheek-stripe ; 
ears larger than in D. muellert, with their back thinly haired 
and not darker than the crown. No hip-stripe; limbs dark 
smoky-grey ; tail shorter than body, dark brown, with the tip 
white and naked. 
Distribution. 
Eastern and South-eastern New Guinea. 
Curiously enough, this species presents the same superficial 
resemblance to Macropus browni as is shown by LD. muelleri to 
M. brunit. Whether these resemblances are examples of mimi- 
; cry, and if so on which side the mimicry exists, and what may 
be its object, is at present quite unknown. 
II], MACLEAY’S DORCA. DORCOPSIS MACLEAYI, 
Dorcopsis macleayi, Mikl. Macl., Proc. Linn. Soc. N. South 
Wales, vol. x., p. 149 (1885) ; Thomas, Cat. Marsup. Brit. 
) Mus., p. 92 (18388). 
 Characters.—The smallest form. Fur radiating from two centres 
on back of neck. General colour brownish-grey, becoming 
| somewhat lighter on the under-parts; tip of tail white and 
nearly naked. 
Distribution —Southern New Guinea. 
As the single specimen on which this species was established 
presents many features connecting the typical representative 
of the genus with AZacropus, it has been suggested that it may 
turn out to be a hybrid between MZ. browni and D. luctuosa. 
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