78 



VEKTEBRATA : MAMMALIA. 



The tail is also sensitive, and thus becomes both an organ 

 of feeling and prehension, enabling the possessor to obtain 

 small objects even where the hand cannot be inserted. 



Prominent among the Platyrhine monkeys are the 

 Howlers, large monkeys, which have a vocal apparatus by 

 which they produce the most frightful howls ; others are 

 known as Weepers from their plaintive cry ; others as 

 Spider monkeys (Fig. 76), from their long and sprawl- 

 ing legs. All these, and many others, have the tail pre- 

 hensile. Besides these there are the Fox-tailed, Squirrel, 

 and Night monkeys, and the Marmosets mentioned above, 

 all of which have non-prehensile tails. 



The STEEPSOKHINE quadrumana are so named on account 

 of their curved nostrils. The name is derived from two 

 Greek words streptos^ twisted, and rhin, nose. They in- 

 habit Madagascar, Central and "Western Africa, and India ; 

 and, excepting their four extremities, they much resemble 

 the ordinary quadrupeds. They are best known as the 

 Lemuroidea ; and they are also often called Makis. 



FIG. 78. True Lemurs have six incisors in 



the lower jaw and only four in the 

 upper. Those known as Indri have 

 only four incisors in the lower jaw. 

 Those called Lorises live in the 

 East Indies, and have a very slender 

 body. The Galagos of Africa and 

 the Tarsiers of the Moluccas have 

 the tail tufted, and the eyes and 

 ears large. 



More curious than all the other 

 lemuroids is the Aye-Aye, which, 

 Lemur, Lemur catta, Linn. according to the latest authorities, 

 must be placed here ; but its true place has been regarded as 



