Grey Dwarf vs Pacific Spiny-rat

Elachista bedellella compared with Proechimys decumanus

Key Differences

• Grey Dwarf is Endangered while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Grey Dwarf	Pacific Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Rodentia (Rodents)
Family	Elachistidae	Echimyidae
Genus	Elachista	Proechimys
Species	Elachista bedellella	Proechimys decumanus

Evolutionary Relationship

Grey Dwarf and Pacific Spiny-rat share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Grey Dwarf

EN — Endangered

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Grey Dwarf	Pacific Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Grey Dwarf

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as 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.