Species Name: Piliocolobus rufomitratus
The Tana River red colobus (Piliocolobus rufomitratus), also called the eastern red colobus, is a critically endangered primate species in the Cercopithecidae family. The Tana River red colobus monkeys are the only one of 18 species of red colobus that do not live in the tropical rainforest.
Species Name: Chlorocebus tantalus
The tantalus monkey (Chlorocebus tantalus) is an Old World monkey endemic to Africa, ranging from Ghana to Sudan. It was initially described as a subspecies of Grivet (Chlorocebus aethiops). Tantalus monkeys are very similar to vervet monkeys but are smaller in size.
Species Name: Piliocolobus tholloni
The Thollon's red colobus (Piliocolobus tholloni), also called the Tshuapa red colobus, is native to the Democratic Republic of the Congo and the Lower Republic of the Congo. It was recognized as a separate species by Dandelot in 1974, followed by Groves in 2001.
Species Name: Macaca thibetana
The Tibetan macaque (Macaca thibetana), also called the Chinese stump-tailed macaque is a macaque native to eastern Tibet, eastern Guangdong, and northern Shaanxi in China. Tibetan macaques are the largest of the macaques and have a strong, muscular build with dense fur that ranges in color from gray to brown.
Species Name: Plecturocebus toppini
Toppin's Titi (Plecturocebus toppini) is a species of Titi, a species of New World monkey endemic to Bolivia, Peru, and Brazil. It got its name from Captain Toppin, who collected the type specimen of this species near the Tahuamanu River in Peru.
Species Name: Semnopithecus priam
The tufted gray langur (Semnopithecus priam), also called the Coromandel sacred langur and the Madras gray langur, is an Old-World monkey, one of the langur species. These langurs are generally shy and only descend when there is no visible danger.
Suggested Reading: Different Kinds of Monkeys