Alston s Cotton Rat vs Bishop ray

Sigmodon alstoni compared with Aetobatus narinari

Key Differences

• Alston s Cotton Rat is Least Concern while Bishop ray is Near Threatened.

Taxonomic Classification

Rank	Alston s Cotton Rat	Bishop ray
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Mammalia (哺乳動物)	Elasmobranchii
Order	Rodentia (啮齿目)	Myliobatiformes (鱝目)
Family	Cricetidae	Myliobatidae
Genus	Sigmodon	Aetobatus
Species	Sigmodon alstoni	Aetobatus narinari

Evolutionary Relationship

Alston s Cotton Rat and Bishop ray share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

Alston s Cotton Rat

LC — Least Concern

Bishop ray

NT — Near Threatened

Physical Characteristics

Attribute	Alston s Cotton Rat	Bishop ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alston s Cotton Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Bishop ray

Habitat

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

Range

Distributed across Colombia, Taiwan, and Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Alston s Cotton Rat

The Alston s Cotton Rat (Sigmodon alstoni) is a species in the genus Sigmodon. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems. Distributed across Colombia and Venezuela.

Bishop ray

The Bishop ray (Aetobatus narinari) is a species in the genus Aetobatus. It is currently classified as Near Threatened on the IUCN Red List. Native to Asia and South America, inhabiting ecosystems characteristic of the region.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇻🇪 Venezuela