Coimbra-Filho’s Titi vs Northern naked-tailed armadillo

Callicebus coimbrai compared with Cabassous centralis

Key Differences

• Coimbra-Filho’s Titi is Endangered while Northern naked-tailed armadillo is Near Threatened.

Taxonomic Classification

Rank	Coimbra-Filho’s Titi	Northern naked-tailed armadillo
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class same	Mammalia (lớp Thú)	Mammalia (lớp Thú)
Order	Primates (bộ Linh trưởng)	Cingulata (Bộ Thú có mai)
Family	Pitheciidae	Dasypodidae
Genus	Callicebus	Cabassous
Species	Callicebus coimbrai	Cabassous centralis

Evolutionary Relationship

Coimbra-Filho’s Titi and Northern naked-tailed armadillo share a common ancestor at the Class level: Mammalia. (lớp Thú)

Conservation Status

Coimbra-Filho’s Titi

EN — Endangered

Northern naked-tailed armadillo

NT — Near Threatened

Physical Characteristics

Attribute	Coimbra-Filho’s Titi	Northern naked-tailed armadillo
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Coimbra-Filho’s Titi

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Northern naked-tailed armadillo

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.