Possible Clues:

• Long-limbed simian
• Long-limbed South American primate
• Primate with long limbs and tail
• Rest when playing, feasible after Mass, vital for primate
• This animal presumably moves about on eight limbs ... correction: four limbs
• Primate with spindly limbs
• Long-limbed primate
• It has a long prehensile tail
• Agile primate (Ateles geoffroyi)