flat-backed millipede vs Merriam’s Pocket Mouse

Polydesmus complanatus compared with Perognathus merriami

Taxonomic Classification

Rank	flat-backed millipede	Merriam’s Pocket Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Diplopoda (Diplopoda)	Mammalia (Mammals)
Order	Polydesmida (Polydesmida)	Rodentia (Rodents)
Family	Polydesmidae	Heteromyidae
Genus	Polydesmus	Perognathus
Species	Polydesmus complanatus	Perognathus merriami

Evolutionary Relationship

flat-backed millipede and Merriam’s Pocket Mouse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

flat-backed millipede

LC — Least Concern

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	flat-backed millipede	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

flat-backed millipede

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.