Symphalangus syndactylus. Gibbon Appearance. This webbing provides the siamang with its scientific name, Symphalangus syndactylus, which translates from Ancient Greek to “together phalanx” + “united finger.” The siamang’s body is perfectly adapted to a life of swinging from branch to branch (also known as brachiation). HABITAT: Rainforest with home range up to 100 acre tracts of Sumatra and Malaysia . The species of crested gibbons, whose scientific name is Nomascus, consists of the Northern buff-cheeked, Black-crested, Eastern black-crested, Hainan black-crested, Northern white-cheeked, Southern white-cheeked, and Yellow-cheeked gibbon. Their calls establish territory and reinforce the bond between a male and female. Scientific name i: Symphalangus syndactylus: Taxonomy navigation › Symphalangus. Siamang are larger than their gibbon relatives. The scientific name of siamangs, Symphalangus, originates from the Greek words “sum” and “phalanx” that mean together and finger respectively. The Symphalangus genus contains one species, siamang gibbons. Status. These “webbed” toes are one of the main features to identify siamangs. Omnivore; mostly fruits and leaves but will also consume insects, bird eggs and small invertebrates. Siamang Gibbons Scientific Name. Range. Prey: Fruits, Seeds, Insects Name Of Young: Infant Group Behavior: Group Fun Fact: Has 32 teeth including fang-like canines! SCIENTIFIC NAME: Symphalangus syndactylus. These are light, agile apes. The average length of the siamang is 75 to 90 cms (29.5 to 35.5 in) from their head to rump and the average weight is 8 to 13 kgs (17 to 28 pounds). Siamang. Scientific Name: Symphalangus syndactylus. CONSERVATION STATUS: Endangered . Sumatra Island to Malaysia. Siamangs are apes and like all apes, including chimpanzees and gorillas, they do not have a tail. This is an easy way to tell the difference between monkeys and apes. Cool Animal Fact. What do they eat? Forests. Endangered. Location in the Zoo. Scientific Name. SIAMANG. Wortham World of Primates. As an ape the siamang does not have a tail. Malay peninsula and Sumatra. Diet These are known as ischial callosities and help the siamang have a more comfortable night sleeping in the tree branches safe from predators. Calls can be heard as much as a mile through the dense forest. Symphalangus syndactylus. Range. Habitats. Estimated Population Size: 100,000 - 200,000 Biggest Threat: Habitat loss Most Distinctive Feature: Dexterous hands and feet and complex communication Other Name(s): Common Chimpanzee Gestation Period: 8 months Habitat: Tropical forest and woody savanna The second and third toes of siamangs are joined by skin. Conservation Threats.