134 ALLEN’S NATURALIST’S LIBRARY. 
only in the dry woods bordering the Campos in the interior 
of Brazil. 
Habits.—‘‘One would mistake it,” writes Mr. Bates in refer- 
ence to this rare littke Marmoset—the prettiest species of its 
family —‘‘ at first sight for a Kitten, from its small size, varied 
colours, and the softness of its fur. It was a most timid 
creature, screaming and biting when anyone attempted to 
handle it. It became familiar, however, with the people of the 
house, a few days after it came into their possession. When 
hungry or uneasy, it uttered a weak querulous cry, a shrill note 
which was sometimes prolonged so as to resemble the stridula- 
tion of a grasshopper.” 
Ill. THE WHITE-EARED MARMOSET. HAPALE AURITA. 
Jacchus auritus, Geoffr., Ann. Mus., xix., p. 19 (1812). 
Hapale aurita, Kuhl, Beitr. Zool., p. 48 (1820); Schl., Mus. 
Pays Bas, vii., p. 276 (1876). 
Characters.—Larger than H/afale jacchus ; ears naked, ex- 
ternal, exposed, with a band of long hairs across the inner sur- 
face of the conch, forming a short grey tuft; tail ringed, blackish, 
the hair minutely punctulated with yellow or red ; sides of the 
head, limbs, and hinder part of body blackish-brown ; face 
more or less white; back blackish, without indication of cross- 
bands. 
Distribution.— Brazil. 
IV. THE WHITE-FOOTED MARMOSET. HAPALE LEUCOPUS. 
Hapale leucopus, Giinth., P. Z. S., 1876, p. 743, pl. Ixxi. 
Characters.—Hair of back and sides moderately long, silky, 
brownish-grey ; nape and occiput darker; face and head 
covered with short sparse white hair; ears large, naked, and 
without tufts ; throat greyish-brown ; under side of body and 
