Atlantic Deep-sea Lobster vs small tortoiseshell

Acanthacaris caeca compared with Aglais urticae

Key Differences

• Atlantic Deep-sea Lobster is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Atlantic Deep-sea Lobster	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class	Malacostraca (Crustaceans)	Insecta (Insects)
Order	Decapoda (Decapoda)	Lepidoptera (Butterflies & Moths)
Family	Nephropidae	Nymphalidae (Brush-footed Butterflies)
Genus	Acanthacaris	Aglais
Species	Acanthacaris caeca	Aglais urticae

Evolutionary Relationship

Atlantic Deep-sea Lobster and small tortoiseshell share a common ancestor at the Phylum level: Arthropoda. (Arthropods)

Conservation Status

Atlantic Deep-sea Lobster

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Atlantic Deep-sea Lobster	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Deep-sea Lobster

Habitat

Typically found in marine, freshwater, and terrestrial environments.

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.

Atlantic Deep-sea Lobster

The Atlantic Deep-sea Lobster (Acanthacaris caeca) is a species in the genus Acanthacaris. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine, freshwater, and terrestrial environments.

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.