Humboldt's Squirrel Monkey vs Scaly Stalkball

Saimiri cassiquiarensis compared with Tulostoma melanocyclum

Key Differences

• Humboldt's Squirrel Monkey is Near Threatened while Scaly Stalkball is Critically Endangered.

Taxonomic Classification

Rank	Humboldt's Squirrel Monkey	Scaly Stalkball
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Primates (Primates)	Agaricales (Gilled Mushrooms)
Family	Cebidae	Agaricaceae (Agarics)
Genus	Saimiri	Tulostoma
Species	Saimiri cassiquiarensis	Tulostoma melanocyclum

Conservation Status

Humboldt's Squirrel Monkey

NT — Near Threatened

Scaly Stalkball

CR — Critically Endangered

Physical Characteristics

Attribute	Humboldt's Squirrel Monkey	Scaly Stalkball
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Humboldt's Squirrel Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Scaly Stalkball

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.