480 



PLACENTAL QUADEUPEDS. 



ber ; some of them, however, are formidable from 

 their strength and ferocity. 



The Zebra Wolf, or Native Tiger of the Australian colonists {Thy- 

 lacinus * cynoce];jludusY), equals a large dog in size and strength, speci- 

 mens having been found four feet in length, besides the tail, which 

 is two more. It is nocturnal, like most beasts of prey, feeds on 



».~i,^UlX WOLF. 



Kangaroos and other inoffensive animals, and is hated hy the settlers 

 for its depredations among the sheep that pasture on the jDlains. The 

 colom- of this animal is yellowish brown, marked with transverse 

 bauds. 



Sub-Class II. Placentall-^.j: 



Placental Quadrupeds. § 



In the Placental Mammalia the young are born 

 completely furnished with all their limbs, and for 

 some time are nourished by milk derived from the 

 maternal breast. They are classified as in the Table 

 in the opposite page : — 



* QvKaKQs, th3dacos, a ijoudi ; kvccv, kj^on, a dog. 



t Kvwv, Kvvos, kyon, kynos, a dog ; K^cpaXr), cephale, a head. 



X Animals whose progeny are nom-ished by the intervention of a 

 placenta, during the later stages of gestation. 



§ Quatuor, four ; pes, a foot ; — a term generally applied to the 

 mammalia. 



