Merriam’s Pocket Mouse vs Western Dwarf

Perognathus merriami compared with Elachista triseriatella

Key Differences

• Merriam’s Pocket Mouse is Least Concern while Western Dwarf is Not Evaluated.

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	Western Dwarf
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Lepidoptera (Butterflies & Moths)
Family	Heteromyidae	Elachistidae
Genus	Perognathus	Elachista
Species	Perognathus merriami	Elachista triseriatella

Evolutionary Relationship

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

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

Western Dwarf

NE — Not Evaluated

Physical Characteristics

Attribute	Merriam’s Pocket Mouse	Western Dwarf
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Western Dwarf

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium and Denmark.