Brownfish vs chestnut worm

Actinopyga echinites compared with Lumbricus castaneus

Key Differences

• Brownfish is Vulnerable while chestnut worm is Not Evaluated.

Taxonomic Classification

Rank	Brownfish	chestnut worm
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Annelida (Segmented Worms)
Class	Holothuroidea (Holothuroidea)	Clitellata (Clitellata)
Order	Holothuriida (Holothuriida)	Crassiclitellata (Crassiclitellata)
Family	Holothuriidae	Lumbricidae
Genus	Actinopyga	Lumbricus
Species	Actinopyga echinites	Lumbricus castaneus

Evolutionary Relationship

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

Conservation Status

Brownfish

VU — Vulnerable

chestnut worm

NE — Not Evaluated

Physical Characteristics

Attribute	Brownfish	chestnut worm
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.

chestnut worm

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

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.

chestnut worm

The chestnut worm (Lumbricus castaneus) is a species in the genus Lumbricus. Native to Europe and North America, inhabiting ecosystems characteristic of the region.