884 ROBERT COLLETT, 



In the palaie the perforations (foramina palatina) are incom- 

 plete. In the upper jaw, i ^ (as is often the case) is larger, than in 

 most of the fullgrown individuals. 



Of the premolars both p ^ and the milk premolar are in use. 

 The first is thick and short, but with more of the appearance of a true 

 premolar, than in the young M. giganteus. The milk premolars 

 are of exactly the same size, as the first molar, although an indication 

 of itä premolar nature is visible from its first tubercle having a slightly 

 crenulated margin. Behind the space between both these teeth the 

 germ of ^ ^ is seen. 



Of the molars only m^ is developed in the upper and lower jaw. 



The premolar in the lower jaw (i? ^) is considerably smaller than 

 that of the upper jaw; the embryonic p^ lies hidden here also under 

 the milk premolar, which is formed just as m ^ 



33. Halfnaturus agilis Gould 1841. 

 Halmalurus agilis Gould, in: Proc. Zool. Soc. Lond. 1841, p. 81 (1841). 



A. Young of B. (skin with skull). 



B. Female. Herbert Vale, Nov. 1882 (skin with skull). 



The name „Wallaby", which is given to several of the Hahnaturi 

 in Northern Queensland, is especially applied to H. agilis. It is very 

 numerous in the grassy districts by Herbert River, but is only met 

 with in the Valleys, not on the hüls. 



Although the specimen in the collection had a large young one 

 in its pouch, it was barely fullgrown, as the innermost molar was 

 not yet fully developed. 



The colouring is normal. The white cross stripe across the 

 haunches is distinct, the black of the tip of the ear and along the 

 anterior raargin of its outer surface is also sharply defined. 



Some measurements taken from the mounted female (B) : — 



Length of body (head included) about 750 mm 



Length of tail 580 „ 



Length of ear (measured along its inner margin) . 64 „ 

 Length of bind foot (from heel to tip of claw) . . 237 „ 

 The ears and tail are rather short; the tail considerably shorter, 

 than the length of the body (head included). 

 Thus is contained: 



the ear in the length of the bind foot 3,70. 



the skull in the length of the bind foot 1,68. 



the bind foot in the length of the tail 2,44. 



