Ecuadorian Cotton Rat vs Ray

Sigmodon inopinatus compared with Atlantoraja castelnaui

Key Differences

• Ecuadorian Cotton Rat is Vulnerable while Ray is Critically Endangered.

Taxonomic Classification

Rank	Ecuadorian Cotton Rat	Ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Rajiformes (Rajiformes)
Family	Cricetidae	Arhynchobatidae
Genus	Sigmodon	Atlantoraja
Species	Sigmodon inopinatus	Atlantoraja castelnaui

Evolutionary Relationship

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

Conservation Status

Ecuadorian Cotton Rat

VU — Vulnerable

Ray

CR — Critically Endangered

Physical Characteristics

Attribute	Ecuadorian Cotton Rat	Ray
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.

Ray