Telline épaisse vs Sylphe à queue d'azur

Arcopagia crassa compared with Aglaiocercus kingii

Key Differences

• Telline épaisse is Vulnerable while Sylphe à queue d'azur is Least Concern.

Taxonomic Classification

Rank	Telline épaisse	Sylphe à queue d'azur
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum	Mollusca (mollusques)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Aves (oiseau)
Order	Cardiida (Cardiida)	Apodiformes (Apodiformes)
Family	Tellinidae	Trochilidae
Genus	Arcopagia	Aglaiocercus
Species	Arcopagia crassa	Aglaiocercus kingii

Evolutionary Relationship

Telline épaisse and Sylphe à queue d'azur share a common ancestor at the Kingdom level: Animalia. (animal)

Conservation Status

Telline épaisse

VU — Vulnerable

Sylphe à queue d'azur

LC — Least Concern

Physical Characteristics

Attribute	Telline épaisse	Sylphe à queue d'azur
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Telline épaisse

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Sylphe à queue d'azur

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Telline épaisse

The Blunt tellin (Arcopagia crassa) is a species in the genus Arcopagia. It is currently classified as Vulnerable on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

Sylphe à queue d'azur

One of the most strikingly ornamented hummingbirds, male long-tailed sylphs have iridescent green plumage and dramatically elongated, ribbon-like outer tail feathers reaching up to 22 cm — over three times the body length. Found in Andean cloud forests of Colombia and Venezuela, they inhabit humid montane forest between 1,400–2,800 meters elevation. Males perform elaborate display flights to attract females. Their extravagant tails are a classic example of sexual selection via female preference.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway