Brown Roll Rim vs Cottontop Tamarin

Paxillus involutus compared with Saguinus oedipus

Key Differences

• Brown Roll Rim is Least Concern while Cottontop Tamarin is Critically Endangered.

Taxonomic Classification

Rank	Brown Roll Rim	Cottontop Tamarin
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Mammalia (Mammals)
Order	Boletales (Boletales)	Primates (Primates)
Family	Paxillaceae	Callitrichidae
Genus	Paxillus	Saguinus
Species	Paxillus involutus	Saguinus oedipus

Conservation Status

Brown Roll Rim

LC — Least Concern

Cottontop Tamarin

CR — Critically Endangered

Physical Characteristics

Attribute	Brown Roll Rim	Cottontop Tamarin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Roll Rim

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Brazil, Chile).

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.

Brown Roll Rim

The Brown Roll Rim (Paxillus involutus) is a species in the genus Paxillus. It is currently classified as Least Concern on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.