This website does readability filtering of other pages. All styles, scripts, forms and ads are stripped. If you want your website excluded or have other feedback, use this form.

Monkeys, Apes, and Tarsiers - Haplorrhini - Overview - Encyclopedia of Life

Haplorrhini — Overview

Monkeys, Apes, and Tarsiers learn more about names for this taxon


Papio anubis Trusted

© David Bygott

Source: Flickr: EOL Images

Procolobus kirkii Trusted

© Josh Noseworthy

Source: Flickr: EOL Images

Pan troglodytes Trusted

USAID Africa Bureau

Source: Wikimedia Commons

Callicebus donacophilus Trusted

© cieloparaiso

Source: Flickr: EOL Images

See all media

Brief Summary

Read full entry

Learn more about this article

The Haplorhini suborder contains the following parvorders: Tarsiiformes (tarsiers), Platyrrhini (New World Monkeys), and Catarrhini (Old World Monkeys and apes, including humans).  Distinctive characteristics of haplorhines include: a "dry nose" (i.e. rhinarium), the inability to manufacture vitamin C, a larger brain to body ratio than is found in strepsirrhine primates, a particularly well-developed set of vision relative to strepsirrhine primates, and a primarily diurnal behavioral pattern (with the exceptions of the Owl Monkey and the tarsiers).

Today, primates are split into two major suborders: Strepsirrhini (lemurs, galagos, lorises, and pottos) and Haplorhini (tarsiers, New World Monkeys, Old World Monkeys, and apes). In the past, this division was contentious. Tarsiers proved particularly troublesome, as these animals exhibit a blend of anatomical features similar to both major groups. The now obsolete suborder Prosimii ("prosimians") grouped tarsiers with the species now classified as strepsirrhines while pooling the other primate species (New World Monkeys, Old World Monkeys, and apes) under the suborder Anthropoidea. However, this Prosimii-Anthropoidea split has since been disproved; genetic testing has conclusively shown that tarsiers are more closely related to the "anthropoid" species. Thus, Prosimii is a polyphyletic suborder and is therefore obsolete. The Anthropoidea clade, while paraphyletic, is still useful at times. Anthropoids include all haplorhine species except the tarsiers.


© Abigail Nishimura

Supplier: Abigail Nishimura

Present in 8 collections

See all 8 collections in which this page appears.

Belongs to 0 communities

This taxon hasn't been featured in any communities yet.

Learn more about Communities

EOL has no trait data

No one has contributed data records for Haplorhini yet. Learn how to contribute.

Found in 4 classifications

See all 4 approved classifications in which this taxon appears.

Suborder recognized by Integrated Taxonomic Information System (ITIS):

Reviewed by 0 curators

Learn how to curate

Our curators haven't taken any action on this page yet.

Latest updates

See all 3193 updates for this page.

Add a new comment


EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!

A new version of EOL is getting ready for launch—thank you for your patience!

Encyclopedia of Life

Global Navigation


Login or Create Account

Become part of the EOL community!

Join EOL now

Already a member? Sign in

Site information

About EOL
Learn more about
Biodiversity Heritage Library

Visit the Biodiversity Heritage Library

Tell me more