IV. THE WHITE-FOOTED MARMOSET. HAPALE LEUCOPUS.
Hapale leucopus, Günth., P. Z. S., 1876, p. 743, pl. lxxii.
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 inside of legs rusty-red; fore-arm, hands, and feet white—the hairs short, blackish or black, with white tips. Head and body, 11½ inches long; tail, 14½ inches. Dorsal and lumbar vertebræ together, 19.
Female.—Similar to the male, but with the hairs of the upper parts silver-tipped.
Distribution.—Medellin, in the province of Antioquia, United States of Colombia.
Habits.—Unknown.
V. THE GOLDEN MARMOSET. HAPALE CHRYSOLEUCA.
Hapale chrysoleucos, Wagner in Wiegm. Arch., 1842, i., p. 357; id. in Schreb. Säugeth., Suppl., v., p. 125 (1855); Sclater, P. Z. S., 1869, p. 594.
Mico sericeus, Gray, P. Z. S., 1868, p. 256, pl. xxiv.
Miocella chrysoleucos, Gray, Cat. Monkeys Brit. Mus., p. 131 (1870).