Amazonian Marsh Rat vs Pex tachuela

Holochilus sciureus compared with Echinorhinus brucus

Key Differences

• Amazonian Marsh Rat is Least Concern while Pex tachuela is Endangered.

Taxonomic Classification

Rank	Amazonian Marsh Rat	Pex tachuela
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Elasmobranchii
Order	Rodentia (Rodents)	Squaliformes (Squaliformes)
Family	Cricetidae	Echinorhinidae
Genus	Holochilus	Echinorhinus
Species	Holochilus sciureus	Echinorhinus brucus

Evolutionary Relationship

Amazonian Marsh Rat and Pex tachuela share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Pex tachuela

EN — Endangered

Physical Characteristics

Attribute	Amazonian Marsh Rat	Pex tachuela
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.

Pex tachuela

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Portugal. Currently classified as 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.

Pex tachuela

The Bramble shark (Echinorhinus brucus) is a species in the genus Echinorhinus. It is currently classified as Endangered on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.