Brownfish vs Downy Emerald

Actinopyga echinites compared with Cordulia aenea

Key Differences

• Brownfish is Vulnerable while Downy Emerald is Least Concern.

Taxonomic Classification

Rank	Brownfish	Downy Emerald
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Arthropoda (Arthropods)
Class	Holothuroidea (Holothuroidea)	Insecta (Insects)
Order	Holothuriida (Holothuriida)	Odonata (Odonata)
Family	Holothuriidae	Corduliidae
Genus	Actinopyga	Cordulia
Species	Actinopyga echinites	Cordulia aenea

Evolutionary Relationship

Brownfish and Downy Emerald share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brownfish

VU — Vulnerable

Downy Emerald

LC — Least Concern

Physical Characteristics

Attribute	Brownfish	Downy Emerald
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brownfish

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Downy Emerald

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

Brownfish

The Brownfish (Actinopyga echinites) is a species in the genus Actinopyga. It is currently classified as Vulnerable on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

Downy Emerald

Downy Emerald (Cordulia aenea) 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.