Amazonian Marsh Rat vs Aragua Robber Frog

Holochilus sciureus compared with Pristimantis anotis

Key Differences

Amazonian Marsh Rat is Least Concern while Aragua Robber Frog is Critically Endangered.

Taxonomic Classification

Rank	Amazonian Marsh Rat	Aragua Robber Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Anura (Frogs & Toads)
Family	Cricetidae	Craugastoridae
Genus	Holochilus	Pristimantis
Species	Holochilus sciureus	Pristimantis anotis

Evolutionary Relationship

Amazonian Marsh Rat and Aragua Robber Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Aragua Robber Frog

CR — Critically Endangered

Physical Characteristics

Attribute	Amazonian Marsh Rat	Aragua Robber Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazonian Marsh Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Aragua Robber Frog

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Venezuela. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Amazonian Marsh Rat

The Amazonian Marsh Rat (Holochilus sciureus) is a species in the genus Holochilus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Aragua Robber Frog

The Aragua Robber Frog (Pristimantis anotis) is a species in the genus Pristimantis. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types within the Ne.