710 PRIMATES 
ones at a time, and thereby differ from all other members of the 
suborder, in which one is the normal number. They are divided 
into two genera, according to the proportionate size of the lower 
canine to the incisors; but some species present an intermediate 
condition, so as to render this distinction of somewhat doubtful 
value. 
Hapale.\—Lower canine not longer than the incisors. A number 
of species have been described, among which may be mentioned 
Fic, 337.—The Golden Marmoset (Midas chrysoleucas). From Proc. Zool. Soc. 1868. pl. 24 
3 » pl. 24. 
Al. jacchus, H. albicoilis, H. aurita, and H. humeralifer. Remains of 
species of this genus have been found in the cavern-deposits of 
Brazil. 
Midas.’—Lower canine considerably longer than the incisors, N. ft) 
less than twenty-four species of this genus have been named amon 
which the Silky Marmoset (J. rosalia) of Columbia, the Ting 
Monkey (M. edipus) of South-Eastern Brazil, and the Golden 
Marmoset (J. chrysoleucas, Fig. 337) are well-known types. 
* Hliger, Prodromus Syst. Mamm. et Avium, p. 71 (1811). 
* Geoffroy, dan. du Muséwm, vol. xix. p. 120 (1812). 
