Amazonian Marsh Rat vs Cottontop Tamarin

Holochilus sciureus compared with Saguinus oedipus

Key Differences

• Amazonian Marsh Rat is Least Concern while Cottontop Tamarin is Critically Endangered.

Taxonomic Classification

Rank	Amazonian Marsh Rat	Cottontop Tamarin
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order	Rodentia (Nagetiere)	Primates (Primaten)
Family	Cricetidae	Callitrichidae
Genus	Holochilus	Saguinus
Species	Holochilus sciureus	Saguinus oedipus

Evolutionary Relationship

Amazonian Marsh Rat and Cottontop Tamarin share a common ancestor at the Class level: Mammalia. (Säugetiere)

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Cottontop Tamarin

CR — Critically Endangered

Physical Characteristics

Attribute	Amazonian Marsh Rat	Cottontop Tamarin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazonian Marsh Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Cottontop Tamarin

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.

Amazonian Marsh Rat

The Amazonian Marsh Rat (Holochilus sciureus) is a species in the genus Holochilus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Shared Countries

Both species can be found in 1 countries:

🇨🇴 Colombia