Occidental Tuskshell vs small tortoiseshell

Antalis occidentalis compared with Aglais urticae

Key Differences

• Occidental Tuskshell is Data Deficient while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Occidental Tuskshell	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Scaphopoda (Scaphopoda)	Insecta (Insects)
Order	Dentaliida (Dentaliida)	Lepidoptera (Butterflies & Moths)
Family	Dentaliidae	Nymphalidae (Brush-footed Butterflies)
Genus	Antalis	Aglais
Species	Antalis occidentalis	Aglais urticae

Evolutionary Relationship

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

Conservation Status

Occidental Tuskshell

DD — Data Deficient

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Occidental Tuskshell	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Occidental Tuskshell

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden