Dark Dwarf vs Pacific Spiny-rat

Elachista subnigrella compared with Proechimys decumanus

Key Differences

• Dark Dwarf is Vulnerable while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Dark 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 subnigrella	Proechimys decumanus

Evolutionary Relationship

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

Conservation Status

Dark Dwarf

VU — Vulnerable

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

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

Habitat & Geographic Range

Dark Dwarf

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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