Marsh Dwarf vs Pacific Spiny-rat

Elachista alpinella compared with Proechimys decumanus

Key Differences

• Marsh Dwarf is Least Concern while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Marsh 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 alpinella	Proechimys decumanus

Evolutionary Relationship

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

Conservation Status

Marsh Dwarf

LC — Least Concern

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

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

Habitat & Geographic Range

Marsh Dwarf

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.