Geoffroy's marmoset  (Callithrix geoffroyi)

Geoffrey's marmoset has declined in numbers as a result of habitat destruction, capture for the pet trade, for exportation to zoos and for biomedical research, and persecution due to an assumption that they carry yellow fever and malaria (5) (6). Today, habitat destruction poses the greatest threat to this rare primate, which has left it restricted to small forest fragments (5) (6).

Conservation measures are unknown.