Amazonian Marsh Rat vs Pacific Spiny-rat

Holochilus sciureus compared with Proechimys decumanus

Key Differences

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

Taxonomic Classification

Rank	Amazonian Marsh Rat	Pacific Spiny-rat
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order same	Rodentia (Nagetiere)	Rodentia (Nagetiere)
Family	Cricetidae	Echimyidae
Genus	Holochilus	Proechimys
Species	Holochilus sciureus	Proechimys decumanus

Evolutionary Relationship

Amazonian Marsh Rat and Pacific Spiny-rat share a common ancestor at the Order level: Rodentia. (Nagetiere)

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

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

Habitat & Geographic Range

Amazonian Marsh Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

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.

Amazonian Marsh Rat

The Amazonian Marsh Rat (Holochilus sciureus) is a species in the genus Holochilus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.