Sharpfin houndshark vs small tortoiseshell

Triakis acutipinna compared with Aglais urticae

Key Differences

• Sharpfin houndshark is Endangered while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Sharpfin houndshark	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Chondrichthyes (Cartilaginous Fish)	Insecta (Insects)
Order	Carcharhiniformes (Ground Sharks)	Lepidoptera (Butterflies & Moths)
Family	Triakidae	Nymphalidae (Brush-footed Butterflies)
Genus	Triakis	Aglais
Species	Triakis acutipinna	Aglais urticae

Evolutionary Relationship

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

Conservation Status

Sharpfin houndshark

EN — Endangered

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Sharpfin houndshark	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Sharpfin houndshark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

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.

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.