beaded chestnut vs smooth giant clam

Agrochola lychnidis compared with Tridacna derasa

Key Differences

• beaded chestnut is Near Threatened while smooth giant clam is Vulnerable.

Taxonomic Classification

Rank	beaded chestnut	smooth giant clam
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Bivalvia (Bivalvia)
Order	Lepidoptera (Butterflies & Moths)	Cardiida (Cardiida)
Family	Noctuidae	Cardiidae
Genus	Agrochola	Tridacna
Species	Agrochola lychnidis	Tridacna derasa

Evolutionary Relationship

beaded chestnut and smooth giant clam share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

beaded chestnut

NT — Near Threatened

smooth giant clam

VU — Vulnerable

Physical Characteristics

Attribute	beaded chestnut	smooth giant clam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

beaded chestnut

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

smooth giant clam

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Oceanian biogeographic realm.

Range

Distributed across Marshall Islands and Taiwan. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

beaded chestnut

The Beaded chestnut (Agrochola lychnidis) is a species in the genus Agrochola. It is currently classified as Near Threatened on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.