Johan s Spiny Mouse vs Medusa Brittlestem

Acomys johannis compared with Psathyrella caput-medusae

Key Differences

• Johan s Spiny Mouse is Least Concern while Medusa Brittlestem is Endangered.

Taxonomic Classification

Rank	Johan s Spiny Mouse	Medusa Brittlestem
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Rodentia (Rodents)	Agaricales (Gilled Mushrooms)
Family	Muridae (Mice & Rats)	Psathyrellaceae
Genus	Acomys	Psathyrella
Species	Acomys johannis	Psathyrella caput-medusae

Conservation Status

Johan s Spiny Mouse

LC — Least Concern

Medusa Brittlestem

EN — Endangered

Physical Characteristics

Attribute	Johan s Spiny Mouse	Medusa Brittlestem
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Johan s Spiny Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Medusa Brittlestem

Habitat

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

Range

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