Atlantic Ancula vs Brown Widow

Ancula gibbosa compared with Latrodectus geometricus

Key Differences

• Atlantic Ancula is Least Concern while Brown Widow is Not Evaluated.

Taxonomic Classification

Rank	Atlantic Ancula	Brown Widow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Gastropoda (Gastropoda)	Arachnida (Arachnids)
Order	Nudibranchia (Nudibranchia)	Araneae (Araneae)
Family	Goniodorididae	Theridiidae
Genus	Ancula	Latrodectus
Species	Ancula gibbosa	Latrodectus geometricus

Evolutionary Relationship

Atlantic Ancula and Brown Widow share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Atlantic Ancula

LC — Least Concern

Brown Widow

NE — Not Evaluated

Physical Characteristics

Attribute	Atlantic Ancula	Brown Widow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Ancula

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Denmark, Norway, and Sweden.

Brown Widow

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Widely distributed across Africa (South Africa), Asia (Japan), Europe (7 countries), North America (United States), and South America (Colombia, Ecuador, Peru).

Atlantic Ancula

The Atlantic Ancula (Ancula gibbosa) is a species in the genus Ancula. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Brown Widow

The Brown Widow (Latrodectus geometricus) is a species in the genus Latrodectus. Typically found in terrestrial habitats from forests to deserts. Its geographic range includes widely distributed across africa (south africa), asia (japan), europe (7 countries), north america (united states), and south america (colombia, ecuador, peru).

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden