Nerz vs Pacific Spiny-rat

Mustela lutreola compared with Proechimys decumanus

Key Differences

• Nerz is Extinct while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Nerz	Pacific Spiny-rat
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order	Carnivora (Raubtiere)	Rodentia (Nagetiere)
Family	Mustelidae (Weasels & Otters)	Echimyidae
Genus	Mustela	Proechimys
Species	Mustela lutreola	Proechimys decumanus

Evolutionary Relationship

Nerz and Pacific Spiny-rat share a common ancestor at the Class level: Mammalia. (Säugetiere)

Conservation Status

Nerz

EX — Extinct

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Nerz	Pacific Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Nerz

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries).

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.