Merriam’s Pocket Mouse vs spreading threadwort

Perognathus merriami compared with Cephaloziella divaricata

Key Differences

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

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	spreading 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 divaricata

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

spreading threadwort

EN — Endangered

Physical Characteristics

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

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

spreading threadwort

Habitat

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

Range

Widely distributed across Europe (5 countries), North America (United States), and South America (Brazil). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.