Pacific Spiny-rat vs Yabby

Proechimys decumanus compared with Cherax destructor

Key Differences

• Pacific Spiny-rat is Near Threatened while Yabby is Vulnerable.

Taxonomic Classification

Rank	Pacific Spiny-rat	Yabby
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Malacostraca (Crustaceans)
Order	Rodentia (Rodents)	Decapoda (Decapoda)
Family	Echimyidae	Parastacidae
Genus	Proechimys	Cherax
Species	Proechimys decumanus	Cherax destructor

Evolutionary Relationship

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

Conservation Status

Pacific Spiny-rat

NT — Near Threatened

Yabby

VU — Vulnerable

Physical Characteristics

Attribute	Pacific Spiny-rat	Yabby
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.

Yabby

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate coniferous forests, and temperate broadleaf and mixed forests, among 7 distinct biome types spanning the Indomalayan and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (China), Europe (4 countries), and North America (Mexico). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.