Trachypithecus obscurus

• Main Authors: Russell A. Mittermeier, Anthony B. Rylands, Don E. Wilson
• Format: Other/Unknown Material
• Language: unknown
• Published: Lynx Edicions 2013
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Mammalia; Primates; Cercopithecidae; Trachypithecus; Trachypithecus obscurus; Elliot; St Matthew Island
• Online Access: https://zenodo.org/record/6863476; https://doi.org/10.5281/zenodo.6863476

150. Dusky Langur Trachypithecus obscurus French: Langur obscur / German: Brillenlangur / Spanish: Langur de anteojos Other common names: Dusky/Spectacled Leaf Monkey, Dusky Leaf-monkey, Spectacled Langur; Blond-tailed Langur/ Creamy-tailed Dusky Langur (flavicauda), Cantor's Dusky Langur/Cantor’s Langur (halonifer), Koh Pennan Dusky Langur/ Phangan Langur (seimund)), Perhentian Island Dusky Langur/Perhentian Langur (styx), Reid's Dusky Langur (obscurus), St. Matthew Island Dusky Langur/Zadetkyi Kyun Langur (sanctorum), Tarutao Langur/Terutau Island Dusky Langur (carbo) Taxonomy. Semnopithecus obscurus Reid, 1837, Malaysia. Restricted by F. N. Chasen in 1940 to Malacca. With T. phayrei, T. barbei, and T. crepusculus, I. obscurus forms the obscurus species group. The island subspecies, in particular, are quite similar to one another. Seven subspecies: recognized2. Subspecies and Distribution. T.o.obscurusReid,1837—PeninsularMalaysia(SfromaboutPerlis). 1:o.carboThomas&Wroughton,1909—Langkawi,Terutau,andDayangBuntingIs,offtheWcoastoftheThai-MalayPeninsula. T: o. flavicauda Elliot, 1910 — S Myanmar (S of ¢.15° 10’ N, and including James, Kisseraing, and King Is in the Mergui Archipelago), SW Thailand (including Khao Lak I), and N Peninsular Malaysia (S to Perlis). 1: o. halonifer Cantor, 1845 — Penang I, off W Peninsular Malaysia. 1: o. sanctorum Elliot, 1910 — Mergui Archipelago (Saint Matthew I), off W Myanmar. 1 o. sesemundi Chasen, 1940 — Ko Phangan I; it also may occur on the adjacent E coast of the Thai—-Malay Peninsula. I: o. styx Kloss, 1911 — East Perhentian I; it also may occur on the adjacent E coast of the Thai-Malay Peninsula. Descriptive notes. Head-body 42-68 cm (males) and 43-60 cm (females), tail 64—81 cm (males) and 57-79 cm (females); weight 6.1-9.1 kg (males) and 5.8-6 kg (females). Coloration of the Dusky Langur varies considerably, but it is generally grayishblue or black above, with a lighter underside and contrasting whitish or gray on legs and tail, which may also be yellow. Some ...