Merriam’s Pocket Mouse vs Smooth Map Lichen

Perognathus merriami compared with Rhizocarpon hochstetteri

Key Differences

• Merriam’s Pocket Mouse is Least Concern while Smooth Map Lichen is Vulnerable.

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	Smooth Map Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Lecanoromycetes (Lecanoromycetes)
Order	Rodentia (Rodents)	Rhizocarpales (Rhizocarpales)
Family	Heteromyidae	Rhizocarpaceae
Genus	Perognathus	Rhizocarpon
Species	Perognathus merriami	Rhizocarpon hochstetteri

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

Smooth Map Lichen

VU — Vulnerable

Physical Characteristics

Attribute	Merriam’s Pocket Mouse	Smooth Map Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Smooth Map Lichen

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 Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.