Dictionary > Haplorrhine

Haplorrhine

Definition
noun, plural: haplorrhines
Any of the primates characterized mainly by being dry-nosed because of a lack of a rhinarium
Supplement
Haplorrhines belong to the suborder Haplorrhini of the order Primates. The suborder Haplorrhini is a suborder of primates consisting of the following families: Tarsiidae (tarsiers), Callitrichidae (marmosets and tamarins), Cebidae (capuchins and squirrel monkeys), Aotidae (night or owl monkeys ), Pitheciidae ( titis, sakis, and uakaris), Atelidae (howler, spider, and woolly monkeys), Cercopithecidae (Old Word monkeys), Hylobatidae (lesser apes), and Hominidae ( great apes and humans).
The haplorrhines are mainly characterized by their lack of rhinarium. The rhinarium is the skin surface that surrounds the external openings of the nostrils. It is found in another subgroup of primates, the strepsirrhines. The haplorrhines are as such referred to as dry-nosed primates. They have a dry area between the upper lip and the nostrils. Another distinctive feature of haplorrhines is the lack of a functional terminal enzyme that is involved in manufacturing vitamin C. This enzyme is present and functional in strepsirrhines. Thus, the haplorrhines must derive their vitamin C from their diet. The brain-to-body ratio is also higher in haplorrhines than in strepsirrhines.
Word origin: Greek haplóos (“simple”) + rhís (“nose”)
Variant:

  • haplorhine

Scientific classification:

  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Mammalia
  • Order: Primates
  • Suborder: Haplorhini (Pocock, 1918)

See also:


You will also like...

Birth Control and Contraception
Birth Control and Contraception

Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..

Schematic diagram of DNA replication
DNA Structure & DNA Replication

DNA is a double helix structure comprised of nucleotides. A nucleotide, in turn, is made up of phosphate molecule, deoxy..

vitamins
A Balanced Vitamin Diet – Vitamins A – K

A balanced diet is essential to a healthy organism. Insufficiency or too much of a particular element or compound, such ..

Disturbance on a still water
Abiotic Factors – Water Conditions

A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..

Biosecurity and Biocontrol
Biosecurity and Biocontrol

This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..

Early Mammals on Earth
Early Mammals on Earth

The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..