Napo Spiny-rat vs Scaly Stalkball

Proechimys quadruplicatus compared with Tulostoma melanocyclum

Key Differences

• Napo Spiny-rat is Least Concern while Scaly Stalkball is Critically Endangered.

Taxonomic Classification

Rank	Napo Spiny-rat	Scaly Stalkball
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Rodentia (Rodents)	Agaricales (Gilled Mushrooms)
Family	Echimyidae	Agaricaceae (Agarics)
Genus	Proechimys	Tulostoma
Species	Proechimys quadruplicatus	Tulostoma melanocyclum

Conservation Status

Napo Spiny-rat

LC — Least Concern

Scaly Stalkball

CR — Critically Endangered

Physical Characteristics

Attribute	Napo Spiny-rat	Scaly Stalkball
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Napo Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

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.