Irish Major vs Merriam’s Pocket Mouse

Oxycera fallenii compared with Perognathus merriami

Key Differences

• Irish Major is Vulnerable while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Irish Major	Merriam’s Pocket Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Diptera (Diptera)	Rodentia (Rodents)
Family	Stratiomyidae	Heteromyidae
Genus	Oxycera	Perognathus
Species	Oxycera fallenii	Perognathus merriami

Evolutionary Relationship

Irish Major and Merriam’s Pocket Mouse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Irish Major

VU — Vulnerable

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Irish Major	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irish Major

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.