68 MACROPODI'DiE. 



a. Ad. St., S ■ New South Wales. Gould OoU. 



, I Ad. sks. I n New South Wales. Gould Coll. 

 *'«• j Skull of J. f?- 



, . ) Ad.&yg. sks. I Port EssingtonC?)*. Purchased. 

 "'^'■r- \ Skulls ofe^/. ( 



g, h, i. Ad. & yg. skeletons. Zoological Society. 



/. Skull G. K. Waterhouse, 



Esq. [P.]. 



3. Petrogale lateralis. 



Petrogale lateralis, Gould, Mon. Macrop. pi. xxiv. (animal) (1842) 



{descr. orig.) ; Oray, Grey's Austr., App. ii. p. 403 (1841) (nom. 



mud.) ; id'. List Mamm. B. M. p. 92 (1843) ; Goxdd, Mamm. Austr. 



ii. pis. xli., xlii. (animal) (1857); Gerrard, Cat. Bones Mamm. 



B.M.-g. 128 (1862) ; Krefft, Austr. Vert. p. 11 (1871); Jent. Cat. 



Ost. Leyd. Mm. p. 322 (1887). 

 Macropus (Heteropus) lateralis, Waterh. N. iff. Mamm. i. p. 172 



(1846). 

 Halmaturus lateralis, Wagn. Sohr. Saug. Supp. v. p. 328 (1855). 

 Macropus lateralis, Qieh. Saug. p. 683 (1869). 



Wbst-Austkalian Eock-Wallabt. 



Size small ; form slender and light. Fur long, soft, close, and of 

 a rather wooUy texture. General colour light grey. Face grey ; a 

 well-defined dark whisker-mark running through the eye nearly to 

 the ear, succeeded below by a whitish or yellowish cheek-stripe. 

 Crown dark grey, the tips of the hairs black ; between the ears 

 there commences a narrow black or brown line which runs down 

 the neck and disappears about the centre of the back. Ears short, 

 inside and at base of outside yellow, terminal half outside brown, 

 but extreme tips yellow. Back grey, with a faint rusty tinge ; a 

 profninent black or brown mark just behind the elbow, succeeded 

 by a weU-deflned white stripe running down to the hip. Front of 

 knee brown, connected by a brown band with the dark shoulder- 

 spot. Chin, centre of chest, and belly yellowish grey ; sides of 

 chest and inner sides of arms brown. Arms, legs, and feet grey ; 

 fingers and toes black. Tail grey for its proximal, black for its 

 terminal half. 



Shull (PI. XII. fig. 3) small and lightly built. Muzzle long and 

 slender. Nasals long and narrow, evenly but slightly expanded 

 behind. Interorbital region very markedly concave, so much so as 

 to make a distinct concavity at this point in the general profile-line, 

 when viewed from the side. Supraorbital ridges prominent, over- 

 hanging, not converging backwards, forming indistinct rudimentary 

 postorbital processes. Bullse smooth, transparent, distinctly swollen. 



* This locality is probably incorrect, as it is very unlikely that the speoies 

 should occur in a place where the fauna ig so wholly different from that of the 

 Eastern and South-eastern coast of Australia. 



