Lost Flat-Body vs Merriam’s Pocket Mouse

Depressaria depressana compared with Perognathus merriami

Key Differences

• Lost Flat-Body is Endangered while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Lost Flat-Body	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	Depressariidae	Heteromyidae
Genus	Depressaria	Perognathus
Species	Depressaria depressana	Perognathus merriami

Evolutionary Relationship

Lost Flat-Body and Merriam’s Pocket Mouse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Lost Flat-Body

EN — Endangered

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Lost Flat-Body	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Lost Flat-Body

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and 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.