Amazonian Marsh Rat vs Leopard-spotted swellshark

Holochilus sciureus compared with Cephaloscyllium fasciatum

Key Differences

• Amazonian Marsh Rat is Least Concern while Leopard-spotted swellshark is Critically Endangered.

Taxonomic Classification

Rank	Amazonian Marsh Rat	Leopard-spotted swellshark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Rodentia (Rodents)	Carcharhiniformes (Ground Sharks)
Family	Cricetidae	Scyliorhinidae
Genus	Holochilus	Cephaloscyllium
Species	Holochilus sciureus	Cephaloscyllium fasciatum

Evolutionary Relationship

Amazonian Marsh Rat and Leopard-spotted swellshark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Leopard-spotted swellshark

CR — Critically Endangered

Physical Characteristics

Attribute	Amazonian Marsh Rat	Leopard-spotted swellshark
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.

Leopard-spotted swellshark

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

Range

Found in Taiwan. 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.