Bartail spurdog vs small tortoiseshell

Squalus notocaudatus compared with Aglais urticae

Key Differences

• Bartail spurdog is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Bartail spurdog	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Elasmobranchii	Insecta (Insects)
Order	Squaliformes (Squaliformes)	Lepidoptera (Butterflies & Moths)
Family	Squalidae	Nymphalidae (Brush-footed Butterflies)
Genus	Squalus	Aglais
Species	Squalus notocaudatus	Aglais urticae

Evolutionary Relationship

Bartail spurdog and small tortoiseshell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bartail spurdog

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Bartail spurdog	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bartail spurdog

small tortoiseshell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (41 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Bartail spurdog

The Bartail spurdog (Squalus notocaudatus) is a species in the genus Squalus. It is currently classified as Least Concern on the IUCN Red List.

small tortoiseshell

small tortoiseshell (Aglais urticae) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.