Merriam’s Pocket Mouse vs

Perognathus merriami compared with Trichormus variabilis

Key Differences

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

Taxonomic Classification

Rank	Merriam’s Pocket Mouse
Kingdom	Animalia (Tier)	Bacteria (Bacteria)
Phylum	Chordata (Chordatiere)	Cyanobacteria (Cyanobakterien)
Class	Mammalia (Säugetiere)	Cyanobacteriia
Order	Rodentia (Nagetiere)	Cyanobacteriales
Family	Heteromyidae	Nostocaceae
Genus	Perognathus	Trichormus
Species	Perognathus merriami	Trichormus variabilis

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

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

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Trichormus variabilis is a filamentous, nitrogen-fixing cyanobacterium in the family Nostocaceae. It forms heterocysts — specialized nitrogen-fixing cells — within its trichomes and is found in freshwater, soil, and symbiotic associations. Its conservation status is not evaluated.