894 TWO NEW SPECIES OP MACROPUS, 



On the lower jaw 3 molars on each side are to be found, with 

 the tops of the crown of the 4th just appearing. 



2. Macropus gracilis, n. sp. 

 (^ig- 7.) 

 (J. From the hills near Anuabada (Port Moresby), on the South 

 Coast of New Guinea. (Stuffed specimen at the Macleay Museum.) 

 Measurements. 



From tip of nose to base of tail 725 mm. 29,3 in. 



Tail „ „ ,, „ .... 385 — 15,2 



From tip of nose to occiput 138 — ^ 5,4 



Fore limb ,, ,, ,, about.... 220 — g 8,7 



Hind Hmb ,, ,, ,, about 410 — -§ 16,2 



From head to the end of nail of 4th toe 162 — ^^ 6,4 



Length of the ear 58 — ^ 1,9 



Circumference of tail near base .... 128 — 5,0 



Muffle bare and split vertically in the median line. 



Colour of the fur. Head, back, external side of limbs dark 

 brownish-grey, the underside of the body, from the chin to the end 

 of the tail, of light grey colour. On the head, from the upper lip 

 to under the eye, a light coloured band is noticeable. 



Nails long and sharp ; on the middle finger 17 mm. (about 0.7 in.) 

 on the 4th toe 32mm. (about 1-3 in.) long. 



Tail. One third of the upper side covered with dark grey hair, 

 on the other two third hair scarce, on the under side nearly bare. 



The white tip of the tail is quite distinct. 



As already mentioned, these two species present very slight 

 differences : the fur of M. gracilis is a little browner than of M. 

 Jukesii, the tail in proportion to the body and the distribution of 

 hair on the same shows trifling differences. Therefore I am very 

 sorry not to have had the chance of obtaining a skull of M. gracilis 

 the examination of which could, I think, decide the question if 

 these differences are specific or only sexual. 



Not having the skull, all 1 know about the dentition of M- 

 gracilis is restricted to the i-esult of the examination of the incisors 

 from the outer side and the fact of the absence of the d. canini 

 (which fact as well as the direction of the hair on the neck authorise 

 me to describe this animal as a Macropus.) 



