Distribution.—The type specimen was obtained by Humboldt on the banks of the Cassiquiare, near the head waters of the Rio Negro. Mr. Bates found it at Ega and at other places on the Upper Amazon region. It has been recorded also from Guiana; and from Chanchamayo in Peru, at 3,000 feet above the sea.
Habits.—The habits of the Three-banded Douroucoli are entirely nocturnal. They hide in small troops in a hole in the trunk of a tree from morning till twilight, hunting for food during the night. They have a singularly loud and far-reaching voice for such small animals.
II. THE LEMURINE DOUROUCOLI. NYCTIPITHECUS LEMURINUS.
Nyctipithecus lemurinus, Is. Geoffr., Arch. Mus., iv., p. 24, pl. 21 (1844); Gray, Cat. Monkeys Brit. Mus., p. 58 (1870).
Nyctipithecus felinus, Gray, List Mamm. Brit. Mus., p. 14 (1843); Schl., Mus. Pays Bas, vii., 214 (1876).
Characters.—Fur of body and head long; tail depressed, broad, with the hair bushy and spreading on the sides as in a Squirrel. Head presenting a dark frontal area with a round white spot over each eye.
Distribution.—The Lemurine Douroucolis are found in Colombia and in Upper Amazonia; at Macas, on the eastern side of the Andes; and on the upper branches of the main streams of the Amazon, as far as a congenial habitat is met with.
III. THE RED-FOOTED DOUROUCOLI.[[10]] NYCTIPITHECUS RUFIPES.
Nyctipithecus rufipes, Sclater, P. Z. S., 1872, p. 3, pl. 1.
Nyctipithecus vociferans, Spix, Sim. et Vespert. Bras., p. 25, pl. 19 (1823; part); Schl., Mus. Pays Bas, vii., p. 214 (1876; part).