Black Gem vs Brownfish

Microchrysa cyaneiventris compared with Actinopyga echinites

Key Differences

• Black Gem is Least Concern while Brownfish is Vulnerable.

Taxonomic Classification

Rank	Black Gem	Brownfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Echinodermata (Echinoderms)
Class	Insecta (Insects)	Holothuroidea (Holothuroidea)
Order	Diptera (Diptera)	Holothuriida (Holothuriida)
Family	Stratiomyidae	Holothuriidae
Genus	Microchrysa	Actinopyga
Species	Microchrysa cyaneiventris	Actinopyga echinites

Evolutionary Relationship

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

Conservation Status

Black Gem

LC — Least Concern

Brownfish

VU — Vulnerable

Physical Characteristics

Attribute	Black Gem	Brownfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Gem

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

Black Gem

The Black Gem (Microchrysa cyaneiventris) is a species in the genus Microchrysa. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

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.