Merriam’s Pocket Mouse vs River Thread-moss

Perognathus merriami compared with Bryum riparium

Key Differences

• Merriam’s Pocket Mouse is Least Concern while River Thread-moss is Vulnerable.

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	River Thread-moss
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Bryophyta
Class	Mammalia (Mammals)	Bryopsida (Bryopsida)
Order	Rodentia (Rodents)	Bryales (Bryales)
Family	Heteromyidae	Bryaceae
Genus	Perognathus	Bryum
Species	Perognathus merriami	Bryum riparium

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

River Thread-moss

VU — Vulnerable

Physical Characteristics

Attribute	Merriam’s Pocket Mouse	River Thread-moss
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

River Thread-moss

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.