1875.| MR. A. H. GARROD ON HALMATURUS LUCTUOSUS. 51 
The peculiarity in the direction of the hair of the neck, which else- 
where occurs only in Dorcopsis muelleri, Dendrolagus ursinus, and 
Dendrolagus inustus, is as strongly marked as in those species—all 
the hair covering the space bounded in front by a line running 
transversely across the parietal region, and behind by two lines 
joining in the middle line between the shoulders to form a right 
angle seven inches behind the occiput, and extending forward and 
outward to the shoulder-joint, being directed forward, whilst the 
general body-covering of hair is directed normally backwards. 
The lips are nearly naked, as is the skin covering the subsym- 
physial portion of the mandible, just behind which are four large 
and conspicuous glandular hair-follicles in the middle line, arranged 
in pairs to form a square (Plate VIII.). A collection of glands of a 
similar nature is found on the upper eyelid, situated a little nearer 
the inner than the outer canthus. These are well shown in Miiller’s 
drawing of Dorcopsis muelleri*. A few long hairs are to be found on 
the sides of the upper lip. 
The eyelids are somewhat puffed, almost naked, with the eye- 
lashes scarcely apparent. 
The tail is peculiar in being of considerable diameter to near its 
extremity, and in being uniformly thickly covered, for all but its 
termination, with soft, not very short, black hair. The shin of the 
distal end of the tail is lack, except for its terminal 14 inch, where 
it is nearly white. On the upper part of this white portion there 
are a few white hairs; elsewhere it is naked and scaly. The scales 
are also distinctly seen extending forward for a short space over the 
inferior surface of the black skin, from the absence of hair in that 
part. The characteristic manner in which the animal employs its 
tail as a method of support (well shown in P. Z.S. 1874, pl. xlii.), 
might have almost been predicted from the above-described distribu- 
tion of the hair; for it is evident that only a part at the extreme 
end could have habitually come into contact with the ground. 
The only brown hair on the body is that in the pouch, which is 
rufous. There are four mamme. 
There is not the least difficulty in distinguishing Dorcopsis luc- 
tuosa from D. muelleri. 'The general colour of the head, back, and 
tail in the specimens of the latter species from Mysol, above referred 
to, is a mouse-chocolate, which becomes duller over the thighs, and of 
a pale grey on the outside of the fore limb. In D. muelleri the 
general white of the abdominal surface expands slightly opposite the 
orifice of the pouch, just above the knees; it, however, does not 
develop into a band over the flank as in Macropus brunii: the 
white of the throat also extends on to the angle of the jaw, and 
continues forward to join the dim white stripe along the upper lip ; 
and there is a second insignificant white line under each eye, also 
(as mentioned by Prof. Schlegel) not nearly so marked as in M, 
brunti. In the male of D. muelleri the white tip to the tail is as 
much as three inches in length. 
The skull of Dorcopsis luctuosa (Plate VII.) very closely resembles 
* Loe. cit. pl. xxii. 
4* 
