Big Water Crayfish vs Chestnut-breasted Whiteface

Cambarus robustus compared with Aphelocephala pectoralis

Key Differences

• Big Water Crayfish is Least Concern while Chestnut-breasted Whiteface is Near Threatened.

Taxonomic Classification

Rank	Big Water Crayfish	Chestnut-breasted Whiteface
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Malacostraca (Crustaceans)	Aves (Birds)
Order	Decapoda (Decapoda)	Passeriformes (Songbirds)
Family	Cambaridae	Acanthizidae
Genus	Cambarus	Aphelocephala
Species	Cambarus robustus	Aphelocephala pectoralis

Evolutionary Relationship

Big Water Crayfish and Chestnut-breasted Whiteface share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Big Water Crayfish

LC — Least Concern

Chestnut-breasted Whiteface

NT — Near Threatened

Physical Characteristics

Attribute	Big Water Crayfish	Chestnut-breasted Whiteface
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.

Chestnut-breasted Whiteface

Habitat

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

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Chestnut-breasted Whiteface

The Chestnut-breasted Whiteface (Aphelocephala pectoralis) is a species in the genus Aphelocephala. It is currently classified as Near Threatened on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.