Celebes crested macaque vs Coimbra-Filho’s Titi

Macaca nigra compared with Callicebus coimbrai

Key Differences

• Celebes crested macaque is Critically Endangered while Coimbra-Filho’s Titi is Endangered.

Taxonomic Classification

Rank	Celebes crested macaque	Coimbra-Filho’s Titi
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order same	Primates (サル目)	Primates (サル目)
Family	Cercopithecidae (Old World Monkeys)	Pitheciidae
Genus	Macaca	Callicebus
Species	Macaca nigra	Callicebus coimbrai

Evolutionary Relationship

Celebes crested macaque and Coimbra-Filho’s Titi share a common ancestor at the Order level: Primates. (サル目)

Conservation Status

Celebes crested macaque

CR — Critically Endangered

Coimbra-Filho’s Titi

EN — Endangered

Physical Characteristics

Attribute	Celebes crested macaque	Coimbra-Filho’s Titi
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Celebes crested macaque

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 5 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Colombia. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Coimbra-Filho’s Titi

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Celebes crested macaque

The Celebes Crested Macaque (Macaca nigra) is a species in the genus Macaca. It is currently classified as Critically Endangered on the IUCN Red List. Found in Colombia. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Coimbra-Filho’s Titi

The Coimbra-Filho's Titi (Callicebus coimbrai), also known as Coimbra-Filho's Titi Monkey, is a small New World monkey in the family Pitheciidae, named in honour of the Brazilian primatologist Adelmar F. Coimbra-Filho. This titi monkey is endemic to the Atlantic Forest of northeastern Brazil, with its range restricted to the states of Sergipe and southern Alagoas—one of the most critically fragmented and threatened biomes on Earth. Adults are small, with reddish-brown fur on the flanks and upperparts, pale grey on the underparts, and an orange-red forehead band. Like all titi monkeys, Callicebus coimbrai is highly social, living in monogamous family groups of 2–5 individuals that engage in elaborate dawn duets and tail-twining behaviour as expressions of pair bonding. The species inhabits Atlantic Forest fragments, including lowland and highland forest patches, riverine gallery forest, and secondary growth, where it subsists on fruits, seeds, leaves, and occasional invertebrates. The Coimbra-Filho's Titi is classified as Endangered by the IUCN due to its severely fragmented range within one of the world's most deforested biomes, with less than 12% of original Atlantic Forest remaining, ongoing habitat loss from agricultural expansion, and small, isolated population sizes highly vulnerable to stochastic extinction events.