Andean Cottontail vs Coimbra-Filho’s Titi

Sylvilagus andinus compared with Callicebus coimbrai

Key Differences

• Andean Cottontail is Data Deficient while Coimbra-Filho’s Titi is Endangered.

Taxonomic Classification

Rank	Andean Cottontail	Coimbra-Filho’s Titi
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class same	Mammalia (млекопитающие)	Mammalia (млекопитающие)
Order	Lagomorpha (зайцеобразные)	Primates (приматы)
Family	Leporidae (Rabbits & Hares)	Pitheciidae
Genus	Sylvilagus	Callicebus
Species	Sylvilagus andinus	Callicebus coimbrai

Evolutionary Relationship

Andean Cottontail and Coimbra-Filho’s Titi share a common ancestor at the Class level: Mammalia. (млекопитающие)

Conservation Status

Andean Cottontail

DD — Data Deficient

Coimbra-Filho’s Titi

EN — Endangered

Physical Characteristics

Attribute	Andean Cottontail	Coimbra-Filho’s Titi
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Andean Cottontail

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador.

Coimbra-Filho’s Titi

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Andean Cottontail

The Andean Cottontail (Sylvilagus andinus) is a species in the genus Sylvilagus. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Typically found in diverse terrestrial and aquatic ecosystems.

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.