Santarém Marmoset

The Santarem marmoset (Mico humeralifer), also known as the black and white tassel-ear marmoset, is a marmoset endemic to the Brazilian states of Amazonas and Pará. == Description == The Santarem marmoset is a small monkey, with a head-body length of 20 to 27 cm (7.9 to 10.6 in). Adults have been reported to weigh anything from 280 to 475 g (9.9 to 16.8 oz). Its physical form is similar to that of other marmosets, with lower canines that barely protrude above the line of the incisors and claws (rather than nails) on all of their digits except for the big toe. It most closely resembles the Maués marmoset in appearance, differing in having paler fur and in the shape of the ear tassels. Males and females are similar in size. The scientific name "humeralifer" roughly translates as "wearing a shoulder cape" and refers to the mantle of light grey fur that covers the animal's shoulders. There are also patches of whitish fur on the hips, but otherwise the body is black with irregular grey spots over the back and flanks, and yellowish on the underparts. The limbs are black, apart from grey fur stretching down over the outer surface…