Ecuadorian Cotton Rat vs Guyenne Spiny-rat

Sigmodon inopinatus compared with Proechimys guyannensis

Key Differences

• Ecuadorian Cotton Rat is Vulnerable while Guyenne Spiny-rat is Least Concern.

Taxonomic Classification

Rank	Ecuadorian Cotton Rat	Guyenne Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Mammalia (mamíferos)	Mammalia (mamíferos)
Order same	Rodentia (Rodents)	Rodentia (Rodents)
Family	Cricetidae	Echimyidae
Genus	Sigmodon	Proechimys
Species	Sigmodon inopinatus	Proechimys guyannensis

Evolutionary Relationship

Ecuadorian Cotton Rat and Guyenne Spiny-rat share a common ancestor at the Order level: Rodentia. (Rodents)

Conservation Status

Ecuadorian Cotton Rat

VU — Vulnerable

Guyenne Spiny-rat

LC — Least Concern

Physical Characteristics

Attribute	Ecuadorian Cotton Rat	Guyenne Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ecuadorian Cotton Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Guyenne Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela.