Angular angel shark vs Long-tailed Sylph

Squatina argentina compared with Aglaiocercus kingii

Key Differences

• Angular angel shark is Critically Endangered while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Angular angel shark	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Aves (Birds)
Order	Squatiniformes (Squatiniformes)	Apodiformes (Apodiformes)
Family	Squatinidae	Trochilidae
Genus	Squatina	Aglaiocercus
Species	Squatina argentina	Aglaiocercus kingii

Evolutionary Relationship

Angular angel shark and Long-tailed Sylph share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Angular angel shark

CR — Critically Endangered

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Angular angel shark	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Angular angel shark

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Angular angel shark

The Angular angel shark (Squatina argentina) is a species in the genus Squatina. It is currently classified as Critically Endangered on the IUCN Red List.

Long-tailed Sylph

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.