New World Monkeys:
* Marmosets and Tamarins: Small, with long, slender fingers and toes, often found in the Amazon rainforest.
* Capuchins: Known for their intelligence and tool use, with prehensile tails used as a fifth limb.
* Squirrel Monkeys: Small and agile, with long tails and large eyes.
* Howler Monkeys: Large and loud, with distinctive howls used for communication.
* Spider Monkeys: Long limbs and prehensile tails, allowing them to swing through trees.
* Woolly Monkeys: Covered in thick fur, with prehensile tails and long, slender bodies.
Old World Monkeys:
* Macaques: Widely distributed, with a variety of sizes and colors.
* Baboons: Large, terrestrial monkeys with prominent canine teeth.
* Mandrills: Colorful and large, with bright blue and red faces.
* Langurs: Long-tailed, arboreal monkeys found in Asia.
* Colobus Monkeys: Found in Africa, known for their long, flowing fur.
* Proboscis Monkeys: Found in Borneo, with a distinctive, elongated nose.
Other Types:
* Apes: Larger, tailless primates like gorillas, chimpanzees, and orangutans. While not technically "monkeys," they are closely related.
* Tarsiers: Small, nocturnal primates with huge eyes and long hind legs.
This is just a basic overview. For a more detailed classification, you can consult resources like the International Union for Conservation of Nature (IUCN) or the Primate Info Net.