Pacific Spiny-rat vs Smith's Thorius

Proechimys decumanus compared with Thorius smithi

Key Differences

• Pacific Spiny-rat is Near Threatened while Smith's Thorius is Critically Endangered.

Taxonomic Classification

Rank	Pacific Spiny-rat	Smith's Thorius
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Caudata (Caudata)
Family	Echimyidae	Plethodontidae
Genus	Proechimys	Thorius
Species	Proechimys decumanus	Thorius smithi

Evolutionary Relationship

Pacific Spiny-rat and Smith's Thorius share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Pacific Spiny-rat

NT — Near Threatened

Smith's Thorius

CR — Critically Endangered

Physical Characteristics

Attribute	Pacific Spiny-rat	Smith's Thorius
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Smith's Thorius

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

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