I30 



KANGAROOS 



lagus the family is terrestrial, and its numerous species 

 progress by leaps effected by the long hind -limbs, which are 



cbd. 



Fig. 65. — Skeleton of Wallaby (Macropus ucdabatus). The scapula is raised some- 

 what higher than in nature. The end of the tail is omitted. The head of 

 the femur has been separated from the acetabulum, acet. Acetabulum ; acr, 

 acromion process ; ast, astragalus ; cal, calcaneum ; cbd^ cuboid ; chev, chevron- 

 bones ; cl, clavicle ; cun, cuneiform of carpus ; epi, epipubis ; fb, fibula ; /e?fi, 

 femur ; hd, head of femur ; ha, humerus ; il, ilium ; ischj ischium ; obt, obturator- 

 foramen ; orb, orbit ; pis, jjisiform ; pub, pubis ; rad, radius ; rb^, first rib ; rb^'^, 

 last rib ; sc, scapula ; st, sternum ; tb, tibia ; troch, great trochanter of femur ; idn, 

 ulna ; unc, unciform; IV, fourth toe. (From Parker and Haswell's Zoology.) 



longer 



than the fore -limbs. In the 



decidedly, often greatly, 

 hind -limb the fourth toe is very long and strong; the fifth 

 moderately so ; the second and third are slender and united by 

 skin. The tail is always long, but differs in its characters from 



