THE TRUE KANGAROOS AND WALLABIES 



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on which the hair is short. The upper incisor teeth are relatively small, and de- 

 crease in size from the first to the third. They are all of moderate or small size, 

 with short hair, and are some of the most graceful members of the family. The 

 nail-tailed wallaby {Onychogale unguifera) is of a general fawn color, and distin- 

 guished by the great length of the tail, and the large size of its terminal nail; the 

 length of the head and body being twenty-six inches, and that of the tail an inch 

 more. It is a rare species from Northwestern and North Central Australia. The 

 bridled wallaby (O. frenafa) and the crescent wallaby (O. lunata] are smaller spe- 

 cies, with relatively-shorter tails; the former inhabiting Eastern, and the latter, 



Hare Walla- 

 bies 



THE COMMON HARE WALI.ABY. 



(One-fifth natural size.) 



which is not larger than a rabbit, West and South Australia. All the species appear 

 to frequent rocky and arid districts. 



The hare wallabies, so called from their resemblance in size, and in 

 some respects appearance, to the common hare, likewise form a group 

 of three species exclusively confined to Australia. They are charac- 

 terized by the muzzle being partially or completely covered with hair, by the claw 

 of the fourth toe of the hind-foot being long and not concealed by hair, while the 

 tail is rather short and evenly furred, without either a brush of hair or a spur at the 

 tip. Their skulls are characterized by the shortness of the interval between the in- 

 cisor and cheek-teeth, and by the inflation of the auditory bulla on the inferior sur- 

 face the latter feature at once distinguishing these animals from the true wallabies. 

 The upper tusk is always present, and the incisor teeth in the same jaw are small. 



