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The San Martin titi monkey

The San Martín titi monkeyThe San Martin titi monkey (Callicebus oenanthe) is one of the three Peruvian endemic primate species. Until 2002 it was known from only 6 museum specimens, originating from the area around Moyobamba in the San Martin Region. Considering the degradation of the forests in this region, it was assumed that C. oenanthe was extremely rare, and possibly even critically endangered.

San Martin titi monkeys are small animals of approximately 1100 grams. They are brownish of colour, and have a long tail. There is a considerably variation in the colour of different individuals. While the body of some animals is dark brown, others are very light beige, orange or even reddish. The tails can be much darker than the body but we have also observed individuals with a very light tail. The most striking is the difference in the colour of the face. Some animals just have inconspicuous supraorbital spots of lighter hairs around the eyes, while many other animals have a very conspicuous white mask surrounding their muzzle and eyes. In some animals this mask is pure white, but in others the mask seems to be mixed with blackish or brownish.

The San Martin titi monkey is locally known as the “mono tocón”, while the native Awajun communities call it the “sugkamat”.

In 2011 the IUCN has upgrade the conservation status of the species on the Red List from vulnerable to critically endangered. In 2012 it was added to the list of the 25 most endangered primate species, stressing the need for conservation actions.


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