Atlantic titi

Naming

The three subspecies of ''Callicebus personatus'' are products of clinical differentiation . Distinctions between each of the ''Callicebus'' subspecies are based on coat color. The evolution of these coat colors is termed metachromism. The pigments are produced by melanocytes which deposit the pigments into the medulla of growing hair so that the hair grows with the color of that distinct pigment. The characteristic pigment of the ''Callicebus'' is eumelanin found in the iris, skin, and hair .

Distribution

The Atlantic Titi is part of the genus ''Callicebus'' which is composed of thirteen species and sixteen subspecies. More specifically, they belong to the group ''Callicebus moloch'' which is composed of eight species and eight subspecies. Three subspecies of ''Callicebus personatus'' have been described in scientific literature: ''C.p. melanochir'', ''C.p. nigrifrons'', and ''C.p. personatus''. Atlantic Titis are territorial, middle-sized, cebid monkeys; usually 1–2 kg in size. ''C. personatus'' are found primarily in the humid forests east of the Andes Mountains, specifically in the coastal, inland forests of south-eastern Brazil. The states they have been documented to dwell within include Bahia, Espírito Santo, Minas Gerais, Rio de Janeiro, and São Paulo. Of all the ''Callicebus'' species, Atlantic Titi monkeys have the largest geographic range except for ''C. torquatus'', covering approximately 1,000 kilometers. They customarily share their living area with other monkeys such as the Lion Tamarin and Spider Monkey.

Reproduction

Atlantic Titis are usually monogamous . They have one offspring per year. It is difficult to distinguish between the sexes externally, however Atlantic Titi family dynamics indicate that the father carries the infant at all times during the nursing.

Food

Atlantic Titis are opportunistic feeders. In other words, they eat based on the abundance of food that is available to them in each season. Their food choices are not usually very selective, but they are frugivorous, usually eating fleshy fruits, seeds, and leaves.