130 SILKY TAMARIN. is thought that they live a good deal in the manner of the squirrels, and that they remain almost constantly on the trees; bounding with rapidity from tree to tree, uttering sharp but weak cries of alarm, and apparently dispersing at the first appearance of strangers. . The silky tamarin searcely measures, in total length, two feet, of which the tail alone occupies one. The fur is long, silky, and of a golden yellow; the hairs of the head long and falling, parted down the middle of the crown by a line of rust-brown hairs; ears concealed by the long hair of the head; tail rather bushy at its extremity. The gloss upon the fur is particularly rich when held in the sun.