Merriam’s Pocket Mouse vs Scarce Dwarf

Perognathus merriami compared with Elachista trapeziella

Key Differences

• Merriam’s Pocket Mouse is Least Concern while Scarce Dwarf is Vulnerable.

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	Scarce 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 trapeziella

Evolutionary Relationship

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

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

Scarce Dwarf

VU — Vulnerable

Physical Characteristics

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

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Scarce Dwarf

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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