Alston s Cotton Rat vs Carriker’s Speckled Tree-rat

Sigmodon alstoni compared with Pattonomys carrikeri

Key Differences

• Alston s Cotton Rat is Least Concern while Carriker’s Speckled Tree-rat is Data Deficient.

Taxonomic Classification

Rank	Alston s Cotton Rat	Carriker’s Speckled Tree-rat
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order same	Rodentia (Nagetiere)	Rodentia (Nagetiere)
Family	Cricetidae	Echimyidae
Genus	Sigmodon	Pattonomys
Species	Sigmodon alstoni	Pattonomys carrikeri

Evolutionary Relationship

Alston s Cotton Rat and Carriker’s Speckled Tree-rat share a common ancestor at the Order level: Rodentia. (Nagetiere)

Conservation Status

Alston s Cotton Rat

LC — Least Concern

Carriker’s Speckled Tree-rat

DD — Data Deficient

Physical Characteristics

Attribute	Alston s Cotton Rat	Carriker’s Speckled Tree-rat
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.

Carriker’s Speckled Tree-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in 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.

Carriker’s Speckled Tree-rat

The Carriker’s Speckled Tree-rat (Pattonomys carrikeri) is a species in the genus Pattonomys. It is currently classified as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Shared Countries

Both species can be found in 1 countries:

🇻🇪 Venezuela