The marmoset (Callithrix humeralifer) is a narrow endemic occurring only in the north of this region.    From Wordnik.com.  [Madeira-Tapajós moist forests] Reference

The dwarf marmoset (Callithrix humilis) was recently found along the eastern bank of the Madeira and western bank of the Lower Aripuana.    From Wordnik.com.  [Madeira-Tapajós moist forests] Reference

In this report, Erika Sasaki and colleagues used viral DNA as a delivery vehicle to introduce the gene for GFP into the DNA of the common marmoset Callithrix jacchus.    From Wordnik.com.  [GLOWING MONKEYS? are you serious!!!? | Impact Lab] Reference

In a study published in the British journal Nature, a team led by Erika Sasaki of the Central Institute for Experimental Animals at Keio University reported on experiments on common marmosets Callithrix jacchus, a small monkey native to Brazil.    From Wordnik.com.  [Japanese Scientists Create World’s First Transgenic Primates | Impact Lab] Reference

Some species present, which are endemic to the Atlantic forest include maned sloth Bradypus torquatus (EN), thin-spined porcupine Chaeotemys subspinosus (EN), jaguar Panthera onca (VU) and Geoffroy's tufted-ear marmoset Callithrix geoffroyi (VU).    From Wordnik.com.  [Discovery Coast Atlantic Forest Reserves, Brazil] Reference

Mammals found only here or in few other Amazonian regions include three species of endemic titi monkeys (Callicebus hoffmannsi, C. dubius, C. cinerascens), endemic marmosets (Callithrix humeralifer), locally endemic white-faced sakis (Pithecia albicans), a number of rodents such as South American field mice (Bolomys lasiurus), and bats Saccopteryx gymnura.    From Wordnik.com.  [Monte Alegre varzea] Reference

The collared teetee is among the most attractive -- Callithrix torquatus.    From Wordnik.com.  [The Western World Picturesque Sketches of Nature and Natural History in North and South America] Reference

There is another genus of light and graceful little monkeys, known by the name of Callithrix, or "beautiful hair.".    From Wordnik.com.  [The Western World Picturesque Sketches of Nature and Natural History in North and South America] Reference

When the Callithrix sciureus screams violently, does it wrinkle up the skin round the eyes like a baby always does?.    From Wordnik.com.  [More Letters of Charles Darwin — Volume 2] Reference

A Pygmy Marmoset (Callithrix pygmaea) is seen at a primate rescue and rehabilitation center near Santiago August 3, 2010.    From Wordnik.com.  [canada.com Top Stories] Reference

Humboldt also asserts that the eyes of the Callithrix sciureus "instantly fill with tears when it is seized with fear;" but when this pretty little monkey in the Zoological Gardens was teased, so as to cry out loudly, this did not occur.    From Wordnik.com.  [The expression of the emotions in man and animals] Reference

Other mammals that are found only in this ecoregion, or in few other places, include an armadillo Dasypus septemcinctus, bats (Platyrrhinus recifinus, Natalus stramineus, and Molossops greenhalli), primates such as marmosets (Callithrix argentatado), tamarins (Saguinus midas), night monkeys (Aotus infulatus), and savanna foxes (Cerdocyon thous).    From Wordnik.com.  [Marajó varzea] Reference

Mammals found only here or in few other Amazonian regions include primates such as tamarins (Saguinus midas), squirrel monkeys (Saimiri ustus), endangered titi monkeys (Callicebus moloch), marmosets (Callithrix argentatado), a number of rodents such as Coendou koopmani, Myoprocta acouchy, and arboreal rats (Echimys chrysurus and E. grandis), savanna foxes (Cerdocyon thous), and many bats.    From Wordnik.com.  [Gurupa varzea] Reference

The rare newborn albino Pygmy Marmoset (Callithrix pygmae) monkey perches on a zookeeper’s thumb at Froso Zoo in Ostersund, Sweden August 22, 2006.    From Wordnik.com.  [Pygmy Albino Marmosets (w pics) | Impact Lab] Reference

Saguinus oedipus) and common marmosets (Callithrix jacchus.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

"Humboldt also asserts that the eyes of the Callithrix sciureus 'instantly fill with tears when it is seized with fear'; but when this pretty little monkey in the Zoological Gardens was teased, so as to cry out loudly, this did not occur.    From Wordnik.com.  [More Letters of Charles Darwin — Volume 2] Reference

Callithrix.    From Wordnik.com.  [Pygmy Albino Marmosets (w pics) | Impact Lab] Reference

Cercopithecus, Macacus, Cebus, Callithrix, Lemur, Stenops, Hapale, we shall not meet with a greater, or even as great a, break in the degree of development of the convolutions, as we find between the brain of a man and that of an orang or chimpanzee. ".    From Wordnik.com.  [Note on the Resemblances and Differences in the Structure and the Development of the Brain in Man and Apes] Reference

Various mammals that occur here and are not found elsewhere in Amazonia include the marsh deer, maned wolf, central South American seasonal forest primates (Alouatta caraya, Aotus azarai, Callicebus donacophilus, C. modestus, C. olallae, and Callithrix melanura), rodents (Akodon dayi, Kunsia tomentosus, and Oxymycterus inca), four species of opossums (Monodelphis kunsi, Marmosops dorothea, Lutreolina crassicaudata, and Gracilinanus agilis), various bats (Vampyrum spectrum, Phyllostomus hastatus, and Micronycteris behnii, and several species of Platyrrhinus, Molossops temminckii).    From Wordnik.com.  [Beni savanna] Reference