Barbara Brown's titi found between the Paraguaçu River (north) and Salvador (south), and west towards Mirorós. The estimated population is 260 individuals and is decreasing. The blond titi prefers habitats in caatinga a dry scrubland with preferences for dense arboreal caatinga. They do tend to be largely arboreal forest dwellers, and the blond titi monkey probably rarely descends to the ground. They are small in size and are agile primates, they are good climbers through the branches on all four limbs, using their rear limbs to jump long distances, grasping onto branches with leading forehands. While resting, they hunch their body, hanging the
Ornate titi as the white-tailed titi, but is now officially recognized as its own species. The ornate titi is also terrestrial. The ornate titi is present on the IUCN Red List of endangered species, being recognized as “Vulnerable”, and having a general decrease in population trends. The ornate titi has a thick, dense, fluffy, coat, with white ears and forehead, and grey hands and feet. The rest of the body is a bright chestnut red, apart from the tail, which is a dark-reddish brown or black, becoming white at the tip, and, similar to most titi species, is longer than its body.