Brazos Dwarf Crayfish vs small tortoiseshell

Cambarellus texanus compared with Aglais urticae

Key Differences

• Brazos Dwarf Crayfish is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Brazos Dwarf Crayfish	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class	Malacostraca (Crustaceans)	Insecta (Insects)
Order	Decapoda (Decapoda)	Lepidoptera (Butterflies & Moths)
Family	Cambaridae	Nymphalidae (Brush-footed Butterflies)
Genus	Cambarellus	Aglais
Species	Cambarellus texanus	Aglais urticae

Evolutionary Relationship

Brazos Dwarf Crayfish and small tortoiseshell share a common ancestor at the Phylum level: Arthropoda. (Arthropods)

Conservation Status

Brazos Dwarf Crayfish

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Brazos Dwarf Crayfish	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brazos Dwarf Crayfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in Norway.

small tortoiseshell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (41 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Brazos Dwarf Crayfish

The Brazos Dwarf Crayfish (Cambarellus texanus) is a species in the genus Cambarellus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine, freshwater, and terrestrial environments.

small tortoiseshell

small tortoiseshell (Aglais urticae) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway