Merriam’s Pocket Mouse vs Split-Peg Lichen

Perognathus merriami compared with Cladonia cariosa

Key Differences

• Merriam’s Pocket Mouse is Least Concern while Split-Peg Lichen is Endangered.

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	Split-Peg Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Lecanoromycetes (Lecanoromycetes)
Order	Rodentia (Rodents)	Lecanorales (Lecanorales)
Family	Heteromyidae	Cladoniaceae
Genus	Perognathus	Cladonia
Species	Perognathus merriami	Cladonia cariosa

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

Split-Peg Lichen

EN — Endangered

Physical Characteristics

Attribute	Merriam’s Pocket Mouse	Split-Peg Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Split-Peg 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 Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.