Big Water Crayfish vs Harmless Serotine

Cambarus robustus compared with Eptesicus innoxius

Key Differences

• Big Water Crayfish is Least Concern while Harmless Serotine is Near Threatened.

Taxonomic Classification

Rank	Big Water Crayfish	Harmless Serotine
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Malacostraca (Crustaceans)	Mammalia (Mammals)
Order	Decapoda (Decapoda)	Chiroptera (Bats)
Family	Cambaridae	Vespertilionidae
Genus	Cambarus	Eptesicus
Species	Cambarus robustus	Eptesicus innoxius

Evolutionary Relationship

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

Conservation Status

Big Water Crayfish

LC — Least Concern

Harmless Serotine

NT — Near Threatened

Physical Characteristics

Attribute	Big Water Crayfish	Harmless Serotine
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.

Harmless Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. 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.