Pacific Spiny-rat vs robust shell

Proechimys decumanus compared with Littoraria undulata

Key Differences

• Pacific Spiny-rat is Near Threatened while robust shell is Least Concern.

Taxonomic Classification

Rank	Pacific Spiny-rat	robust shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Rodentia (Rodents)	Littorinimorpha (Littorinimorpha)
Family	Echimyidae	Littorinidae
Genus	Proechimys	Littoraria
Species	Proechimys decumanus	Littoraria undulata

Evolutionary Relationship

Pacific Spiny-rat and robust shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Pacific Spiny-rat

NT — Near Threatened

robust shell

LC — Least Concern

Physical Characteristics

Attribute	Pacific Spiny-rat	robust shell
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.

robust shell

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found in Taiwan.