Page 50. 
266 ON HALMATURUS LUCTUOSUS. 
pus bruni; two skeletons of Dendrolagus inustus, one in the British 
Museum and the other in the Museum of the College of Surgeons; as 
well as a pair of skins and an imperfect skull of Macropus brunit from 
Aru, kindly lent me by Mr. Edward Gerrard. 
So faras I know, the visceral anatomy of Dorcopsis muelleri has 
not been described. That of Dendrolagus inustus is fully given by 
Prof. Owen in the “ Proceedings” of the Society ;* and some of the 
actual specimens on which this description is based are preserved in 
the Museum of the College of Surgeons. The internal anatomy of 
Macropus brunii is not known. 
The following Table gives the most important measurements of 
the skin of the female Dorcopsis luctuosa, compared with specimens of 
the same sex of Dorcopsis muelleri and Macropus brunii :— 
Dorcopsis | Dorcopsis | Macropus 
Lengths, ‘Eo. luctuosa 3. | muelleri 9.| brunii 9. 
in. in. in. 
From tip of nose to base of tuil..........006. 24 20°25 21:0 
Daa hike Tae se sei SaGialeie ea elceies Reman 13 25 15 °4 11°75 
From tip of nose to occiput... 1... ..eeee eens 5:0 5°0 4°0 
BOre GIGS. 5 oss 40s pss nt aoeunineiatacente 5°75 6°75 4°75 
Hind limb i uate oo ak Shas BA he aka ome 10°75 12°55 10°5 
From heel to end of nail of fourth toe........ 4°75 4°75 5°0 
LeeniBth OF OB8, aic.0sc sok ph onan Sie motrin 1°4 1°25 1°75 
Circumference of base of tail ............... 4°25 ae 2°0 
From knee to knee over the back............ 14:0 17°0 
The general contour of the body is quite Macropine; the breadth 
at the hips, however, is somewhat small. The hair is soft, short, and 
of a nearly uniform length all over the skin. 
The head is elongate and conical, the muffle naked, the eyes large 
and antilopine. The colour of the upper surface and sides of the 
headt and back is uniformly blackish with a silvery gloss, each hair 
being whitish at its base for two fifths of its length, black for the 
next two fifths, and white at the tip. On the ventral surface a broad 
longitudinal white band extends from the line joining the angles of 
the mouth, backwards along the neck and belly as far as the pouch, 
behind and from the sides of which it continues towards the tail of a 
true slate-colour as far as the cloacal orifice, between which spot and 
* “Proceedings of the Zoological Society,” 1852, p. 103 et seq. 
+ The silvery white spot on the top of the head, mentioned in D’Albertis’ 
description, is not produced by the presence of white hair, but results from the fact 
that the spot where it is sometimes seen is the anterior junction of the forward- 
directed hair of the neck with the backward-directed hair of the frontalregion. Its 
existence depends entirely. on the way in which the hair is brushed; and it is not 
visible except after the natural disposition has been disturbed. 
