Merriam’s Pocket Mouse vs Worcester Crest

Perognathus merriami compared with Dichomeris ustalella

Key Differences

• Merriam’s Pocket Mouse is Least Concern while Worcester Crest is Not Evaluated.

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	Worcester Crest
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Lepidoptera (Butterflies & Moths)
Family	Heteromyidae	Gelechiidae
Genus	Perognathus	Dichomeris
Species	Perognathus merriami	Dichomeris ustalella

Evolutionary Relationship

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

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

Worcester Crest

NE — Not Evaluated

Physical Characteristics

Attribute	Merriam’s Pocket Mouse	Worcester Crest
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Worcester Crest

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, and Sweden.