elliptic trough shell vs Red-billed Duck

Spisula elliptica compared with Anas erythrorhyncha

Taxonomic Classification

Rank	elliptic trough shell	Red-billed Duck
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum	Mollusca (मोलस्का)	Chordata (रज्जुकी)
Class	Bivalvia (पटलक्लोमी)	Aves (पक्षी)
Order	Venerida (Venerida)	Anseriformes (ऐन्सरीफोर्मीस)
Family	Mactridae	Anatidae
Genus	Spisula	Anas
Species	Spisula elliptica	Anas erythrorhyncha

Evolutionary Relationship

elliptic trough shell and Red-billed Duck share a common ancestor at the Kingdom level: Animalia. (प्राणी)

Conservation Status

elliptic trough shell

LC — Least Concern

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	elliptic trough shell	Red-billed Duck
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.

Red-billed Duck

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (6 countries) and South America (Ecuador).

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway