Albino specimens are sometimes found, which are entirely white, except for the golden bar over the eyes.
VII. THE RED-BELLIED LEMUR. LEMUR RUBRIVENTER.
Lemur rubriventer, Is. Geoffr., C. R., xxxi., p. 876 (1850); Schl., Mus. Pays. Bas., vii., p. 311 (1876); Milne-Edw. & Grandid., Hist. Nat. Madag., Mamm., Atlas, ii., pls. 167-170 (1890).
Lemur flaviventer, Is. Geoffr., tom. cit., p. 876 (1850).
Characters.—Inner margins and outside of ears haired, the interior nude.
Male.—Face, a line down the forehead, and snout dark maroon-brown; a ring round the eyes cobalt-blue; rest of head and cheeks reddish-brown; upper side of body speckled reddish-brown, darker on the lower back; tail almost black, with long white hairs distributed throughout its length; feet rufous; under side of body pale.
Female.—Like the male, but having the cheeks whitish; a narrow ring round the eyes pale blue; upper surface umber-brown, washed with reddish-yellow; under side and inner sides of limbs yellowish; ruff reddish-chestnut.
Young.—Head entirely rufous; nose black.
Distribution.—Madagascar.
VIII. THE RING-TAILED LEMUR. LEMUR CATTA.