Caatinga laucha vs smooth giant clam

Calomys expulsus compared with Tridacna derasa

Key Differences

• Caatinga laucha is Least Concern while smooth giant clam is Vulnerable.

Taxonomic Classification

Rank	Caatinga laucha	smooth giant clam
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Bivalvia (Bivalvia)
Order	Rodentia (Rodents)	Cardiida (Cardiida)
Family	Cricetidae	Cardiidae
Genus	Calomys	Tridacna
Species	Calomys expulsus	Tridacna derasa

Evolutionary Relationship

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

Conservation Status

Caatinga laucha

LC — Least Concern

smooth giant clam

VU — Vulnerable

Physical Characteristics

Attribute	Caatinga laucha	smooth giant clam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Caatinga laucha

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

Caatinga laucha

The Caatinga laucha (Calomys expulsus) is a species in the genus Calomys. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.