grey mouse-ear vs Pacific Spiny-rat

Cerastium brachypetalum compared with Proechimys decumanus

Key Differences

• grey mouse-ear is Critically Endangered while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	grey mouse-ear	Pacific Spiny-rat
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Caryophyllales (Caryophyllales)	Rodentia (Rodents)
Family	Caryophyllaceae	Echimyidae
Genus	Cerastium	Proechimys
Species	Cerastium brachypetalum	Proechimys decumanus

Conservation Status

grey mouse-ear

CR — Critically Endangered

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	grey mouse-ear	Pacific Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

grey mouse-ear

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and temperate grasslands and steppes, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (8 countries) and North America (United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.