Arrowhead dogfish vs Scaly-naped Parrot / Scaly-naped Amazon

Deania profundorum compared with Amazona mercenaria

Key Differences

• Arrowhead dogfish is Near Threatened while Scaly-naped Parrot / Scaly-naped Amazon is Least Concern.

Taxonomic Classification

Rank	Arrowhead dogfish	Scaly-naped Parrot / Scaly-naped Amazon
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Aves (Birds)
Order	Squaliformes (Squaliformes)	Psittaciformes (Parrots)
Family	Centrophoridae	Psittacidae (True Parrots)
Genus	Deania	Amazona
Species	Deania profundorum	Amazona mercenaria

Evolutionary Relationship

Arrowhead dogfish and Scaly-naped Parrot / Scaly-naped Amazon share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Arrowhead dogfish

NT — Near Threatened

Scaly-naped Parrot / Scaly-naped Amazon

LC — Least Concern

Physical Characteristics

Attribute	Arrowhead dogfish	Scaly-naped Parrot / Scaly-naped Amazon
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arrowhead dogfish

Habitat

Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Portugal and Taiwan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Scaly-naped Parrot / Scaly-naped Amazon

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Arrowhead dogfish

The Arrowhead dogfish, Deania profundorum, is a species. It is currently assessed as near threatened on the IUCN Red List. Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

Scaly-naped Parrot / Scaly-naped Amazon

A large, predominantly green amazon parrot with distinctive dark-scaled nape feathers and a patch of red on the wing, scaly-naped amazons inhabit humid montane forests of the northern and central Andes in Colombia, Venezuela, Ecuador, and Peru at elevations of 600–3,000 meters. Relatively little known compared to other amazons, they are found in pairs or small flocks feeding on seeds, fruit, and flowers in cloud forest. Listed as Least Concern.