Leontocebus nigricollis graellsi (Graells's Tamarin) is a subspecies of primates in the family Callitrichidae. They are listed as near threatened by IUCN and in cites appendix ii. They are native to The Neotropics. They are diurnal herbivores. Individuals can grow to 505 mm. They have . Reproduction is viviparous and dioecious. They have parental care (female provides care, cooperative breeding, and paternal care).
EOL has data for 42 attributes, including: