Moss Oysterling vs Pacific Spiny-rat

Arrhenia acerosa compared with Proechimys decumanus

Key Differences

• Moss Oysterling is Least Concern while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Moss Oysterling	Pacific Spiny-rat
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Mammalia (Mammals)
Order	Agaricales (Gilled Mushrooms)	Rodentia (Rodents)
Family	Hygrophoraceae	Echimyidae
Genus	Arrhenia	Proechimys
Species	Arrhenia acerosa	Proechimys decumanus

Conservation Status

Moss Oysterling

LC — Least Concern

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Moss Oysterling	Pacific Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Moss Oysterling

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden.

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.