Merriam’s Pocket Mouse vs spurred threadwort

Perognathus merriami compared with Cephaloziella elachista

Key Differences

• Merriam’s Pocket Mouse is Least Concern while spurred threadwort is Endangered.

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	spurred threadwort
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Marchantiophyta (liverwort)
Class	Mammalia (Mammals)	Jungermanniopsida (Jungermanniopsida)
Order	Rodentia (Rodents)	Jungermanniales (Jungermanniales)
Family	Heteromyidae	Cephaloziellaceae
Genus	Perognathus	Cephaloziella
Species	Perognathus merriami	Cephaloziella elachista

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

spurred threadwort

EN — Endangered

Physical Characteristics

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

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

spurred threadwort

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

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.