Bridge Roller vs smooth giant clam

Ancylis uncella compared with Tridacna derasa

Key Differences

• Bridge Roller is Least Concern while smooth giant clam is Vulnerable.

Taxonomic Classification

Rank	Bridge Roller	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	Tortricidae	Cardiidae
Genus	Ancylis	Tridacna
Species	Ancylis uncella	Tridacna derasa

Evolutionary Relationship

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

Conservation Status

Bridge Roller

LC — Least Concern

smooth giant clam

VU — Vulnerable

Physical Characteristics

Attribute	Bridge Roller	smooth giant clam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bridge Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

Bridge Roller

The Bridge Roller (Ancylis uncella) is a species in the genus Ancylis. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.