Merriam’s Pocket Mouse vs Pixie Foam

Perognathus merriami compared with Stereocaulon pileatum

Key Differences

• Merriam’s Pocket Mouse is Least Concern while Pixie Foam is Critically Endangered.

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	Pixie Foam
Kingdom	Animalia (hewan)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (mamalia)	Lecanoromycetes (Lecanoromycetes)
Order	Rodentia (hewan pengerat)	Lecanorales (Lecanorales)
Family	Heteromyidae	Stereocaulaceae
Genus	Perognathus	Stereocaulon
Species	Perognathus merriami	Stereocaulon pileatum

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

Pixie Foam

CR — Critically Endangered

Physical Characteristics

Attribute	Merriam’s Pocket Mouse	Pixie Foam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Pixie Foam

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

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