44 LLOYD’S NATURAL HISTORY. 
yellow. Length of head and body about 29 inches; of tail 
23 inches. 
Distribution.—Coast districts of Queensland, New South 
Wales, and Victoria. 
Habits.—These Rock-Wallabies are described as_ being 
eregarious in their habits, frequenting rocky ground, where 
they have holes to which they retreat when pursued. When 
on precipitous cliffs, they ascend the rocks in groups, jumping 
from side to side, and alighting on such small ledges that it 
seems almost impossible for them to obtain foothold. During 
the day they remain concealed in caves and holes, from which 
they issue forth at evening, while on moonlight nights they 
may be seen abroad at all hours. During the night, according 
to Gould, these Wallabies will frequently leave the well-beaten 
tracks among the rocks for the grass beds on the crowns or 
at the base of the mountains, although they never stray so far 
from their haunts that they are unable to regain them speedily 
on the slightest alarm. They also have the power of easily 
ascending the sloping trunks of trees, upon which they leave, 
in some cases, regular worn tracks. Waterhouse states that 
an example, in the London Zoological Gardens, was in the 
habit of perching itself on some narrow ledge on the walls of 
its enclosure, upon which it would balance its body in a manner 
that at first sight appeared impracticable. 
II. WEST AUSTRALIAN ROCK-WALLABY. PETROGALE LATERALIS. * 
Petrogale lateralis, Gould, Monograph. Macropodide, pl. xxiv. 1 
(1842) ; Thomas, Cat. Marsup. Brit. Mus., p. 68 (1888). ° 
Macropus (Heteropus) lateralis, Waterhouse, Nat. Hist. Mamm., ) 
vol. i., p. 172 (1846). 
Halmaturus lateralis, Wagner, in Schreber’s Saugeth. Suppl, , 
vol. v., p. 328 (1855). 
