1. MACHOPtrS. 51 



Dhnensions. 



6- ?• 



a (sMn). c (skin), 



millim. millim. 



Head and body (c; 770 (c.) 500 



Tail 334 305 



Hind foot 130 115 



, Ear (c.) 45 43 



Skull, see p. 63. 



Hah. Aru and Kei Islands. 



Type not in existence. 



The very complicated history and synonymy of this species, the 

 longest known of the genus, have been so far cleared up by Profs. 

 Schlegel and Garrod {II. ce.) that no further reference to them is 

 here necessary. From Dorcojasis miiUeri, whose remarkable ex- 

 ternal resemblance to M. brunii has tiaused aU the confusion, it 

 may be distinguished by its very much shorter head, by the back- 

 wardly directed hairs of its nape, and by its distinct white hip- 

 stripe. 



, ) Ad. ska. I - n -Aj^ Islands. Purchased. 



**' *• ) Skulls, f "^ ^ ■ 



I Ad. ski n Aru Islands. H.M.S. 'Challenger.' 



"■ jSkuU. f ^• 



J Ad. sk. I o Aru Islands. Purchased. 



"^^ jSkuU. [ ?• 

 «. Yg. sk. Aru Islands. Dr. A. B. Meyer [C.]. 



18. Macropus browni. 



Halmaturus browni, JRams. P. Linn. Soc. JSf. S. W. i. p. 307 (1877). 

 Macropus lugens, Alst. P. Z. S. 1877, p. 126, pi. xix. (animal). 

 Macropus browni, Alst. t. c. p. 743. 

 MacrnpuR jukesi, Mikl.-Macl. P. Linn. Soc. N. S. W. ix. p. 890, 



pi. xixix. figs. 1-6 (skull and teeth) (1885) {juv.). 

 Macropus gracilis, Mikl.-Macl. t. c. p. 894, pi. xxxix. figs. 7, 8 (animal 



and incisors) (1885) (nee Gould). 

 Macropus tibol, Mikl.-Macl. op. cit. x. p. 141, pi. xix. (animal and 



skiJI) (1885) (juv.). 



SOMBKB WaLLAB^. 



■ Exceedingly similar to M. brunii in all characters, but the fur 

 somewhat thicker and softer, the general colour of a greyer tinge 

 and more distinctly grizzled, the ears brown like the head behind, 

 instead of black, the belly yellow instead of white, and the sides of 

 the hip with scarcely a trace of the prominent white hip-mark 

 characteristic of that species. 



SJcull and teeth, so far as can be made out from the single imma- 

 ture specimen available, precisely similar to those of M. bruni, except 

 that the cusps and ridges on the molars appear to be as sharp and 

 well defined as in the other species. 



£2 



