devil clam vs small tortoiseshell

Tridacna mbalavuana compared with Aglais urticae

Key Differences

• devil clam is Vulnerable while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	devil clam	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Cardiida (Cardiida)	Lepidoptera (Butterflies & Moths)
Family	Cardiidae	Nymphalidae (Brush-footed Butterflies)
Genus	Tridacna	Aglais
Species	Tridacna mbalavuana	Aglais urticae

Evolutionary Relationship

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

Conservation Status

devil clam

VU — Vulnerable

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	devil clam	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

devil clam

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.