OKDEUS OF MAMMALIA. 



355 



Hedgehogs, but have no power of rolling themselves up. The 

 "Banxrings" (Tupaia) of the Indian Archipelago have a long, com- 

 preissed tailj and live mostly in tvees. 



Before passing on to the next ordei', a few words must he said 

 about a curious transitional form, which has been alternately placed 

 iu the Cheiroptera, the Insectivora, or the Quadra mana, or has been 

 r3garded as the type of a separate order. The animals alluded to 

 are the so-called Flying Lemurs (paleopithecus), of which more than 



Fig. 260.— Insectivora. The Hedgehog (Erinacms Europmus). 



one species is known as inhabiting the Indian Archipelago. The 

 leading characteristic in these singular animals is the possession of 

 a flying membi'ane, which extends as a broad expansion from the 

 nape of the neck to the arms, from the arms to the hind-legs, and 

 from the hind-legs .to the tail. The fingers are not elongated, and 

 do not support a "patagium," so that the animal has no power of 

 true flight, but can simply take extended leaps from tree to tree. 

 The Oaleopitheci live chiefly upon small insects and birds, and they 

 should probably be regarded as aberrant forms of the Insectivora. 



Order XVI. Quadrumana. 



The sixteenth order of Mammals is that of the Qiiadi-umana, 

 comprising the Apes, Monkeys, Baboons, and Lemurs. The charac- 



