Andean saddleback tamarin
| Andean saddleback tamarin | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Leontocebus leucogenys | ||||||||||||
| ( Gray , 1866) |
The Andean saddleback tamarin ( Leontocebus leucogenys , syn .: Saguinus leucogenys ) is a species from the marmoset family (Callitrichidae) that occurs in northern Peru on the eastern side of the Andes . The distribution area lies between the upper reaches of the Río Marañón and the Río Huallaga .
features
The Andean saddleback tamarin reaches a head-trunk length of 22.5 to 23 cm, has a 30.5 to 33 cm long tail and a weight of 350 to 400 g. The head, shoulders, arms, throat and upper chest area are predominantly black, black-brown, sometimes also aguti-colored , whereby the outside of the arms can show an orange shimmer. The outside of the thighs are orange in color, with dark spots. Their insides, the lower breast and the belly are reddish, washed out reddish-black or striped reddish and black. The tops of the feet and hands are black. The back is striped black and yellow-brown. Unlike the black- coat tamarin ( Leontocebus weddelli ), the Andean saddleback tamarin is not white between the eyes. With the exception of the reddish base, the tail is black. Externally visible hairless skin, e.g. B. on the face or genitals, is black.
habitat
The Andean saddleback tamarin lives in the mountain rainforest on the east side of the Andes up to heights of 900 to 1000 meters. Both primary and secondary forests and gallery forests are populated. It feeds on small fruits, nectar, tree saps and small animals. Nothing more is known about its reproduction.
Systematics
The Andean saddleback tamarin was described by the British zoologist John Edward Gray in 1866 . For a long time it was considered a subspecies of the brown-backed tamarin ( Leontocebus fuscicollis ), but is viewed as an independent species in recent publications. Molecular genetic studies show, however, that the northern population of the Andean saddleback tamarin is more closely related to the black -headed tamarin ( Leontocebus illigeri ), while the southern population, from which the type specimens were taken and which differs from the northern one by a very dark front body, is a clade with the brown-backed tamarin, the black- fronted tamarin ( L. nigrifrons ) and the black- mantled tamarin ( L. weddelli ). Both are separated by the Río Pachitea .
literature
- AB Rylands & RA Mittermeier: Family Callitrichidae (Marmosets and Tamarins). Pages 325 in Russell A. Mittermeier , Anthony B. Rylands & Don E. Wilson : Handbook of the Mammals of the World: Primates: 3rd ISBN 978-8496553897
Individual evidence
- ↑ Colin Groves . 2001. Primate taxonomy. Washington DC: Smithsonian Institution Press.
- ^ Christian Matauschek, Christian Roos & Eckhard W. Heymann: Mitochondrial phylogeny of tamarins ( Saguinus , Hoffmannsegg 1807) with taxonomic and biogeographic implications for the S. nigricollis species group. American Journal of Physical Anthropology, Vol 144, Issue 4, 2011 DOI: 10.1002 / ajpa.21445
- ↑ Christian Matauschek, Eckhard W. Heymann, Knut Finstermeier & Christian Roos: Complete mitochondrial genome data reveal the phylogeny of callitrichine primates and a late Miocene divergence of tamarin species groups. University of Göttingen, 2010
- ↑ Rylands & Mittermeier, page 325.
Web links
- Saguinus fuscicollis ssp. leucogenys in the endangered Red List species the IUCN 2008. Posted by: Rylands, AB & Mitter Meier, RA, 2008. Accessed June 11, 2015.