Marsh Cosmet vs Merriam’s Pocket Mouse

Cosmopterix orichalcea compared with Perognathus merriami

Taxonomic Classification

Rank	Marsh Cosmet	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	Cosmopterigidae	Heteromyidae
Genus	Cosmopterix	Perognathus
Species	Cosmopterix orichalcea	Perognathus merriami

Evolutionary Relationship

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

Conservation Status

Marsh Cosmet

LC — Least Concern

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Marsh Cosmet	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Marsh Cosmet

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, and Sweden.

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.