Martin tamarin
| Martin tamarin | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Saguinus martinsi | ||||||||||||
| ( Thomas , 1912) |
The Martin tamarin or Martin mantle monkey ( Saguinus martinsi ) is a species of primate from the genus group of tamarins , which belongs to the family of marmosets (Callitrichidae). It is closely related to the two-tone tamarin and is sometimes considered a subspecies thereof. The species is named after Oscar Martins who caught the type specimen . He was a taxonomist at the Natural History Museum in Belém, Brazil .
features
Martin tamarins reach a head body length of 21 to 25 centimeters, a tail length of 36 to 40 centimeters and a weight of around 450 grams. One of their most noticeable features is the hairless, black head with large ears. Their fur is mostly brownish, there are two different colored subspecies. In the actual Martin tamarin ( Saguinus martinsi martinsi ) the back is dark brown, the shoulders, arms and the underside are light brown. The ocher tamarin ( Saguinus martinsi ochraceus ) is colored ocher brown throughout. As with all marmosets, the fingers and toes (with the exception of the big toe) have claws instead of nails.
distribution and habitat
Martin tamarins live exclusively in the Amazon basin in northern Brazil . Their small distribution area lies along the Rio Nhamundá, with the subspecies S. m. ochraceus west and S. m. martinsi occurs east of this river. Their habitat are rainforests with thick undergrowth.
Way of life
These primates are diurnal tree dwellers that move four-legged and jump through the branches. They live together in groups of three to ten animals. Their diet consists of fruits and insects.
As with all tamarins, only the dominant female of the group reproduces and mates with all males in the group, a phenomenon rare among mammals known as polyandry . Twins are usually born after a gestation period of around 140 to 150 days. The rearing of the offspring is mainly the responsibility of the males, they carry the children around and only bring them to the female to suckle.
Danger
Martin tamarins inhabit a relatively sparsely populated area and are currently not exposed to any direct threats. The IUCN lists them as not at risk ( least concern ).
literature
- Thomas Geissmann : Comparative Primatology. Springer, Berlin et al. 2003, ISBN 3-540-43645-6 .
- Don E. Wilson , DeeAnn M. Reeder (Eds.): Mammal Species of the World . A taxonomic and geographic Reference. 2 volumes. Johns Hopkins University Press, Baltimore MD 2005, ISBN 0-8018-8221-4 .
- Bo Beolens, Michael Watkins, Michael Grayson (Eds.): The Eponym Dictionary of Mammals. Johns Hopkins University Press, Baltimore MD 2009, ISBN 0-8018-9533-2 , p. 264, ( Martins ).