Alston s Cotton Rat vs American Black-Fish

Sigmodon alstoni compared with Globicephala melas

Key Differences

• Alston s Cotton Rat is Least Concern while American Black-Fish is Not Evaluated.

Taxonomic Classification

Rank	Alston s Cotton Rat	American Black-Fish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Rodentia (Rodents)	Cetacea (Whales & Dolphins)
Family	Cricetidae	Delphinidae (Oceanic Dolphins)
Genus	Sigmodon	Globicephala
Species	Sigmodon alstoni	Globicephala melas

Evolutionary Relationship

Alston s Cotton Rat and American Black-Fish share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Alston s Cotton Rat

LC — Least Concern

American Black-Fish

NE — Not Evaluated

Physical Characteristics

Attribute	Alston s Cotton Rat	American Black-Fish
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.

American Black-Fish

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Venezuela.

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.

American Black-Fish

The American Black-Fish (Globicephala melas) is a species in the genus Globicephala. Typically found in diverse terrestrial and aquatic ecosystems.

Shared Countries

Both species can be found in 1 countries:

🇻🇪 Venezuela