Common Marmoset

The common marmoset is a small callitrichid monkey native to northeastern Brazil (the states of Piaui, Paraiba, Ceara, Rio Grande do Norte, Pernambuco, Alagoas and Bahia) and introduced to Rio de Janeiro and Buenos Aires. It has white ear tufts, a long banded tail and a pelage mixing brown, grey and yellow; all digits except the big toe bear claw-like nails for clinging vertically to trunks. The diet centres on plant exudates such as gum, sap and latex obtained by gouging bark, making up 20-70% of feeding behaviour, with insects at 24-30% plus fruit, seeds, flowers and occasionally bird eggs and nestlings. It lives in family groups of typically nine animals with one or two breeding females, a breeding male, their offspring and adult relatives; gestation is about five months and non-identical twins can be born twice a year. The IUCN lists it as Least Concern, and all primates not on Appendix I are on CITES Appendix II. In Japan the Ministry of Health's animal import notification system excludes monkeys and refers them to the MAFF Animal Quarantine Service, which treats monkeys as rabies-quarantine animals, so animals on the domestic market are captive-bred in Japan. Though popular as pets, they become difficult to manage as they mature and abandonment has been reported.

Source: Wikipedia (CC BY-SA 4.0)

The Common Marmoset lives 10-12 years (captive average; maximum 22.8 years).

Average captive lifespan is 10-12 years with a record of 22.8 years.

The Common Marmoset grows to Head-body about 18.5-19cm / 236-256g.

Males average 188 mm in head-body length and 256 g, females 185 mm and 236 g.