Ecuadorian Cotton Rat vs Speckled ray

Sigmodon inopinatus compared with Raja polystigma

Key Differences

• Ecuadorian Cotton Rat is Vulnerable while Speckled ray is Least Concern.

Taxonomic Classification

Rank	Ecuadorian Cotton Rat	Speckled ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Elasmobranchii
Order	Rodentia (Roedores)	Rajiformes (Rajiformes)
Family	Cricetidae	Rajidae
Genus	Sigmodon	Raja
Species	Sigmodon inopinatus	Raja polystigma

Evolutionary Relationship

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

Conservation Status

Ecuadorian Cotton Rat

VU — Vulnerable

Speckled ray

LC — Least Concern

Physical Characteristics

Attribute	Ecuadorian Cotton Rat	Speckled 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.

Speckled ray