7io 



PRIM A TES 



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. 1 Lower canine not longer than the incisors. A number 

 of species have been described, among which may be mentioned 



FIG. 337. The Golden Marmoset (Midas ckrysoleucas). From Proc. Zool. Soc. 1868, pi. 24. 



H. jacchus, H. albicollis, H. aurita, and H. humeralifer. Remains of 

 species of this genus have been found in the cavern-deposits of 

 Brazil. 



Midas. 2 Lower canine considerably longer than the incisors. No 

 less than twenty-four species of this genus have been named, among 

 which the Silky Marmoset (M. rosalia) of Columbia, the Pinche 

 Monkey (M. cedipus) of South -Eastern Brazil, and the Golden 

 Marmoset (M. chrysoleucas, Fig. 337) are well-known types. 



1 Illiger, Prodromus Syst. Mamm. et Avium, p. 71 (1811). 

 2 Geoffrey, Ann. du Museum, vol. xix. p. 120 (1812). 



