THE DIADEM INDRIS. 
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with the human foot, and that of the Apes. The great toe is wide apart from the others, and in that it 
resembles the thumb of a hand; but all the other bones of the ankle or tarsus are in the same relative 
position as they occupy in us. They have the same names. Their foot is very broad, and this is 
produced by the extra size of the four front bones of the ankle, and these form an arch, the three inner 
ones being more or less wedge-shaped, and the outer, or fourth, is more or less of a cube in shape ; 
hence they are called the wedge-shaped (cuneiform) and cube-shaped (or cuboid) bones. They are 
jointed in front to the long bones (metatarsals), and behind to the three other ankle-bones. All are 
THE BLACK OR SHORT-TAILED IXDRIS. (Modified after Grandidier.) 
united more or less solidly by ligaments, and yet there is motion. Now in this Indris the wedge- 
shaped bones are large, especially the second from the inside, or the middle one, and curiously enough 
this is small in most other Lemuroids. The large arch formed by these bones contributes to the 
strength of the foot. 
The Diadem Indris is found in the forests of the central parts of Madagascar, and appears to keep 
apart from other kinds and to roam about the dense woods in bands. 
THE WOOLLY LEMUR— THE AVAHI * 
This is one of the long-tailed Indris, and is remarkable for having long hinder limbs, a long furry 
tail, a very short muzzle, and a round head. 
It was first described by Sonnerat, in his voyage to the East Indies, who called it the 
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* Indris laniger . 
