Ecuadorian Cotton Rat vs Arraia

Sigmodon inopinatus compared with Hypanus americanus

Key Differences

• Ecuadorian Cotton Rat is Vulnerable while Arraia is Near Threatened.

Taxonomic Classification

Rank	Ecuadorian Cotton Rat	Arraia
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Elasmobranchii
Order	Rodentia (Roedores)	Myliobatiformes (Myliobatiformes)
Family	Cricetidae	Dasyatidae
Genus	Sigmodon	Hypanus
Species	Sigmodon inopinatus	Hypanus americanus

Evolutionary Relationship

Ecuadorian Cotton Rat and Arraia share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Ecuadorian Cotton Rat

VU — Vulnerable

Arraia

NT — Near Threatened

Physical Characteristics

Attribute	Ecuadorian Cotton Rat	Arraia
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.

Arraia

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.