Platyrrhine is a term used to describe the shape of a certain type of primate nose. The word is spelled "pl-ah-t-ih-r-ih-n" and is pronounced /plæˈtɪrɪn/. The first three letters, "pla," represent the Latin root word for "flat" or "broad," while the remainder of the word, "tyrrhine," refers to the shape of the nose. Platyrrhines are found exclusively in Central and South America and are characterized by their wide septum and nostrils that face outwards. The spelling and pronunciation of this word can be a bit tricky, but it is an important term for those studying primate biology.
Platyrrhine is an adjective used to describe a specific group of primates characterized by having a broad, flat nose and nostrils that are positioned facing forward and outward. The term "platyrrhine" is derived from the Greek words "platus," meaning flat, and "rhinos," meaning nose.
Platyrrhines, also known as New World monkeys, are native to Central and South America, and they exhibit various physical and behavioral characteristics that distinguish them from other primate groups. These primates are relatively small in size and can range from the tiny pygmy marmoset to the larger howler monkeys.
One of the most distinctive features of platyrrhines is their flat, wide nasal structure, which sets them apart from other primates, such as humans, apes, and Old World monkeys. This adaptation allows them to effectively navigate through their tropical forest habitats, as their noses help in the detection and processing of smells and scents essential for communication, foraging, and social interactions.
Furthermore, platyrrhines often possess a prehensile tail, which means their tail has the ability to grasp or hold objects. This adaptation enables them to maneuver through the complex and dense vegetation in their environment, aiding in their ability to move and forage efficiently.
Platyrrhines have great ecological diversity, occupying a wide range of habitats from rainforests to dry forests. They have adapted to various diets, including frugivory (fruit-eating), folivory (leaf-eating), insectivory (insect-eating), and omnivory (eating a combination of plant and animal material).
In summary, platyrrhines are a group of New World monkeys distinguished by their broad, flat
1. Characterized by a nose of abnormal width in proportion to its length. 2. Noting a skull with a nasal index between 51.1, or 53, and 58.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "platyrrhine" originates from two Greek roots: "platys" meaning "wide" or "flat", and "rrhinos" meaning "nose". The term was coined to refer to a particular group of New World monkeys characterized by their broad, flat noses with sideways-pointing nostrils.