II. THE WHITE-SHOULDERED MARMOSET. HAPALE HUMERALIFER.
Hapale humeralifer, Geoffr., Ann. Mus., xix., p. 120 (1812); Bates, Nat. Amaz., ii., p. 55 (1863).
Characters.—Face partly naked, flesh-coloured; ears fringed with long white hairs. Fore-part of body white; hands grey; hind part black, with the rump and under side reddish-tawny; tail banded with grey and black; long white hair on the shoulders. Length about 8 inches, exclusive of the tail.
Distribution.—Mr. Bates says that this species seems to occur only in the dry woods bordering the Campos in the interior of Brazil.
Habits.—"One would mistake it," writes Mr. Bates in reference to this rare little 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 stridulation of a grasshopper."
III. 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 Hapale jacchus; ears naked, external, exposed, with a band of long hairs across the inner surface 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.