| Scientific name | Plecturocebus cupreus* |
| Head-body length | 30-40 cm |
| Tail length | 40-48 cm |
| Body mass | 750-1000 g |
| Distribution | western Amazonia (south of Rio Napo and Rio Solimões between Andes and Rio Purús) |
| Habitat | tropical rainforest of terra firme type |
| Diet | fruits, seeds, leaves, arthropods, nectar/flowers |
| Social organization | families conformed of an adult pair and up to 3, rarely 4 offspring of different ages |
| Mating system | monogamy |
| Reproduction and infant care | ~150 days; infants carried almost exclusively by father |
| Social behavior | resting in body contact is the most frequent affiliative behavior; tail twining |
| Communication | conspicuous duet calls, mainly in the early morning |
| Home-range size | 10-20 ha |
| Predators | confirmed (at other sites): eagles, snakes, capuchin monkeys; suspected: cats |
