THE COMMON MARMOSETS. 
CHAPTER XII. 
THE MARMOSETS AND TA MARINS.* — 1. hapale — 2. midas. 
'The Dentition of the Genus Hapale, or the Marmosets, or Ouistitis — The Face— The Paw-like Hands and Feet — Their 
Claws— The Skull and Brain, and the Nature of the Diet — The Common Marmoset — Its Habits — The Cloaked 
Marmoset— The Genus Midas— The TamaRINS — Their Dentition— The Negro Tamarin— Its Habits— Midas 
Argentatum Deville’s Midas — The Silky Tamarin — Notes on the Arctopithecini in general. 
The second division of the Monkeys of the New World is characterised by there being thirty-two 
teeth, and the tail is not prehensile. It is generally termed that of the Marmosets, or in scientific 
language, the Arctopithecini, a word which means Bear-Monkey. There are two genera in this 
division : the first is that of the Marmosets proper, or genus Hapale ; and the second is that of the 
Tamarins, or genus Midas. 
THE MARMOSETS, OR OUISTITIS. f 
In this genus the thirty-two teeth are so arranged that instead of there being three back teeth, or 
true molars, on the side of each jaw, they have only two. But there are three false molars placed in 
iront of these two crushing molars, and this has a direct relation to the insectivorous diet of the 
animal. The outer edge of these false molars has one sharp point, admirably adapted to pierce a 
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* Arctopithecini. 
f Hapale. 
