Fatspine spurdog vs Marbled polecat

Squalus crassispinus compared with Vormela peregusna

Key Differences

• Fatspine spurdog is Least Concern while Marbled polecat is Vulnerable.

Taxonomic Classification

Rank	Fatspine spurdog	Marbled polecat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Squaliformes (Squaliformes)	Carnivora (Carnivorans)
Family	Squalidae	Mustelidae (Weasels & Otters)
Genus	Squalus	Vormela
Species	Squalus crassispinus	Vormela peregusna

Evolutionary Relationship

Fatspine spurdog and Marbled polecat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Fatspine spurdog

LC — Least Concern

Marbled polecat

VU — Vulnerable

Physical Characteristics

Attribute	Fatspine spurdog	Marbled polecat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Fatspine spurdog

Marbled polecat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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