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Show 1875.] MR. A. H. GARROD ON HALMATURUS LUCTUOSUS. 51 The peculiarity in the direction of the hair of the neck, which elsewhere 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 Muller'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 eyelashes 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 skin of the distal end of the tail is black, except for its terminal 1 \ 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. xiii.), might have almost been predicted from the above-described distribution 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 mammae. There is not the least difficulty in distinguishing Dorcopsis luctuosa 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. brunii. 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 * Loc. cit. pl. xxii. 4* |