Big Water Crayfish vs brittlestar

Cambarus robustus compared with Amphiura chiajei

Taxonomic Classification

Rank	Big Water Crayfish	brittlestar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Echinodermata (Echinoderms)
Class	Malacostraca (Crustaceans)	Ophiuroidea (Ophiuroidea)
Order	Decapoda (Decapoda)	Amphilepidida (Amphilepidida)
Family	Cambaridae	Amphiuridae
Genus	Cambarus	Amphiura
Species	Cambarus robustus	Amphiura chiajei

Evolutionary Relationship

Big Water Crayfish and brittlestar share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Big Water Crayfish

LC — Least Concern

brittlestar

LC — Least Concern

Physical Characteristics

Attribute	Big Water Crayfish	brittlestar
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Water Crayfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in United States.

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

Big Water Crayfish

The Big Water Crayfish (Cambarus robustus) is a species in the genus Cambarus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine, freshwater, and terrestrial environments.

brittlestar

The Brittlestar (Amphiura chiajei) is a species in the genus Amphiura. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.