elliptic trough shell vs Giant Otter

Spisula elliptica compared with Pteronura brasiliensis

Key Differences

• elliptic trough shell is Least Concern while Giant Otter is Endangered.

Taxonomic Classification

Rank	elliptic trough shell	Giant Otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Mammalia (Mammals)
Order	Venerida (Venerida)	Carnivora (Carnivorans)
Family	Mactridae	Mustelidae (Weasels & Otters)
Genus	Spisula	Pteronura
Species	Spisula elliptica	Pteronura brasiliensis

Evolutionary Relationship

elliptic trough shell and Giant Otter share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

elliptic trough shell

LC — Least Concern

Giant Otter

EN — Endangered

Physical Characteristics

Attribute	elliptic trough shell	Giant Otter
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

elliptic trough shell

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Giant Otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.