Brown Roll Rim vs Giant Otter

Paxillus involutus compared with Pteronura brasiliensis

Key Differences

• Brown Roll Rim is Least Concern while Giant Otter is Endangered.

Taxonomic Classification

Rank	Brown Roll Rim	Giant Otter
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Mammalia (Mammals)
Order	Boletales (Boletales)	Carnivora (Carnivorans)
Family	Paxillaceae	Mustelidae (Weasels & Otters)
Genus	Paxillus	Pteronura
Species	Paxillus involutus	Pteronura brasiliensis

Conservation Status

Brown Roll Rim

LC — Least Concern

Giant Otter

EN — Endangered

Physical Characteristics

Attribute	Brown Roll Rim	Giant Otter
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).

Giant Otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela. Currently classified as 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.