111. Sabah Grizzled Langur Presbytis sabana French: Langur de Sabah / German: Sabah-Langur / Spanish: Langur de Sabah Other common names: Crested Grizzled Langur Taxonomy. Semnopithecus sabanus Thomas, 1893, Malaysia, Sabah, Paitan. Until recently, P. sabana was classified as a subspecies of P. hoser, but it is morphologically distinct. Monotypic. Distribution. N Borneo in most of Sabah State, as far SW as Kalabakan (4° 26’ N 117° 29’ E); its occurrence in N Kalimantan is not confirmed. Descriptive notes. Head-body 48-56 cm, tail 65-84 cm; weight 6-7 kg (males) and 5. 5-6 kg (females). The Sabah Grizzled Languris gray above and below, except white belly and inner surfaces of limbs, contrasting with black on hands and feet. Crown is gray, with a tall black crest on back of head and two frontal whorls. Facial skin is reddish, with bluish lips and a pair of distinct black spots on each side of the face, between eyes and mouth—a pattern sometimes seen in more contrastingly colored individuals of Hose’s Langur (Presbytis hoset). Habitat. Evergreen, lowland, riparian, and montane rainforest. Sabah Grizzled Langurs will also enter tree plantations. Food and Feeding. Sabah Grizzled Langurs eat mainly young leaves, unripe fruits, seeds, and flowers. Diets vary with the extent of habitat degradation (logging), in different forests, and at different times of the year. On average, young leaves comprise 42-45% ofthe diet,fruits 3-25%, seeds 17-21%, mature leaves only 1-5%, and flowers 3% or less. They also eat buds, bark, insects, and bird eggs, and nestlings. More leaves, especially those oflianas (mostly Fabaceae), are eaten in unlogged forest (78% of the diet vs. 60% in logged forest), and more fruits and seeds are eaten in logged forest (19% fruits and 21% seeds vs. 3% fruits and 17% seeds in unlogged forest). Breeding. Infants are weaned at ¢.300 days; they are consideredjuvenile at c.11 months of age and subadult at 21-36 months. Infants are white, with a black cruciform pattern across their backs and shoulders. ...