NAIL-TAILED KANGAHOO. 
75 
of exposure to light, which has, no doubt, altered the colour¬ 
ing. Dcsmnrest, whose first description was taken from these 
specimens about thirty years back, states the general colour¬ 
ing of the fur to bo sooty-brown; darker on the back than on 
the flanks, and shaded into pale-grey on the under part of the 
neck, chest, and belly. 
Sub-genus Otnjchogalea. 
Genus Onychogalea. Gray, List of the Specimen* of Mammalia in the 
Collection of the British Museum, p. 88. 18-13. 
Mullle clothed with hair; posterior upper incisor as narrow ns the 
anterior oue, or narrower, and with a single vertical groove; 
general form slender; fore legs small; tarsi long and slender; 
tail also loug and slender, and furnished with a horny 
excrescence at the apex. 
This little section contains some of the most graceful and 
prettily-coloured species of die Kangaroo tribe: diey arc of 
moderate or small size, and have short fur. 
MACROPUS UNGUIFER. Nail-tailed Kangaroo. 
Macropnt unyutfer. Goulu, Proceeding* of the Zoological Society for August, 
1840, pt. 8, p. 93. Monograph of the Macropodidse, 
pt. 1, PI. 4. 
Slender; tail very long; tarsi long; fore legs moderate; ears 
moderately loug, and attenuated at the apex ; fur very short, 
moderate as to texture; general tint, pale-reddish ochre, or 
fulvous; head, limbs, and tail, almost white; abdomen 
whitish; a palish-brown mark, commencing about the middle 
of the back, is continued ou*r the rump, and extends along 
about four inches of the tail. This is clothed with small 
white adpressed hairs, but on the apical portion, commencing 
about eight or nine inches from the tip, is a slender black 
line on the upper surface, and this becomes gradually broader, 
and the dark hairs of which it is formed become also gradu¬ 
ally longer, form a kind of crest, and, at the point of the tail, 
terminate in a long tuft, which hides a horny excrescence. 
