Presbytis rubicunda

Status and Conservation. CITES Appendix II. Classified as Least Concern on The [UCN Red List, including the subspecies rubicunda, rubida, and ignita, but the subspecies chrysea and carimatae are classified as Data Deficient. The Maroon Langur is protected in Sarawak and Sabah (Malaysia). It is still common and has a wide distribution. Habitat loss due to expanding oil palm plantations is a major threat, but the Maroon Langur seems to be adaptable and can occur in some secondary habitats. It is hunted forits meat and bezoars (a visceral mass believed to be an antidote to poison) in some areas. The subspecies rubida occurs in Betung Kerihun National Park, Bukit Baka-Bukit Raya National Park, Gunung Palung National Park, and Tanjung Puting National Park; the Maroon Red Langur occurs in Kutai National Park, Pleihari Martapura Nature Reserve, and Sungai Wain Protected Forest; and the Orange-naped Red Langur, or a related (undescribed) subspecies, occurs in Sungai Kayan Sungai Mentarang National Park — all in Kalimantan. The Orange-naped Red Langur also occurs in Sapagaya Forest Reserve and Danum Valley Conservation Area in Sabah, Malaysia. The Red-naped Red Langur is restricted to the 176 km? Karimata Island. About 50 % of the forest on the island has been lost, and the Red-naped Red Langur does not occur in any protected area, suggesting that it might be critically endangered. The Orange-backed Red Langur is only known from the type series. There are no protected areas in its putative distribution.

Sumber: Cercopithecidae

Descriptive notes. Head — body 44 - 58 cm (males) and 48 - 52 cm (females), tail 63 — 80 cm (males) and 68 - 73 cm (females); weight 6 - 7 kg (males) and 5.5 - 6 kg (females). The Maroon Langur is generally wine-red to orange above and lighter yellowish or creamy on its belly, with black or brown hands and feet. There is a prominent, forwardsweeping black brow fringe and a frontal whorl behind, from which a large crown crest sweeps to the back of head that may be either narrow or broad. Facial skin is bluish-gray, exceptfor pinkish upperlip and chin. The “ Maroon Red Langur ” (Pr. rubicunda) is maroon to mahogany-red, with underparts and inner surfaces of limbs slightly paler. Crown crest is narrow. Hands and feet are washed with black, and tail has scattered black hairs, especially toward tip. P. r. rubida is like the Maroon Red Langur, but more yellowed; its hands and feet are only slightly blackened (or not at all), and its crown crest is narrow. The “ Orange-naped Red Langur ” (P. rn ignita) is foxy-red, with light colored hands and feet. Its crown crest is broad. The “ Orange-backed Red Langur ” (P. r. chrysea) is a rich reddish-gold above, and paler on abdomen and sides of thighs. Its digits are buff washed with brown, and its tail is washed with brown at tip. The “ Red-naped Red Langur ” (P. r. carimatae) is dark brick-red above, with somewhat darkened hands and feet. Its crown is tinged with gold and has a narrow crest.

Sumber: Cercopithecidae