Bordered Ermel vs Merriam’s Pocket Mouse

Ethmia bipunctella compared with Perognathus merriami

Key Differences

• Bordered Ermel is Endangered while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Bordered Ermel	Merriam’s Pocket Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Rodentia (Rodents)
Family	Ethmiidae	Heteromyidae
Genus	Ethmia	Perognathus
Species	Ethmia bipunctella	Perognathus merriami

Evolutionary Relationship

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

Conservation Status

Bordered Ermel

EN — Endangered

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Bordered Ermel	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bordered Ermel

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (5 countries) and North America (United States). Currently classified as Endangered 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.

Bordered Ermel

The Bordered Ermel (Ethmia bipunctella) is a species in the genus Ethmia. It is currently classified as Endangered on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.