Black Nerite vs pato-de-laysan

Theodoxus prevostianus compared with Anas laysanensis

Key Differences

• Black Nerite is Endangered while pato-de-laysan is Critically Endangered.

Taxonomic Classification

Rank	Black Nerite	pato-de-laysan
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Moluscos)	Chordata (cordados)
Class	Gastropoda (Gastrópodes)	Aves (ave)
Order	Cycloneritida (Cycloneritida)	Anseriformes (Anseriformes)
Family	Neritidae	Anatidae
Genus	Theodoxus	Anas
Species	Theodoxus prevostianus	Anas laysanensis

Evolutionary Relationship

Black Nerite and pato-de-laysan share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black Nerite

EN — Endangered

pato-de-laysan

CR — Critically Endangered

Physical Characteristics

Attribute	Black Nerite	pato-de-laysan
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Nerite

Habitat

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

Range

Found in Norway. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

pato-de-laysan

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Black Nerite

The Black Nerite (Theodoxus prevostianus) is a species in the genus Theodoxus. It is currently classified as Endangered on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

pato-de-laysan

O Pato-de-Laysan (Anas laysanensis) está classificado como Criticamente Ameaçado (CR) na Lista Vermelha da IUCN. Enfrenta um risco extremamente alto de extinção na natureza devido ao grave declínio populacional e à perda de habitat.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway