Black Nerite vs Fly Agaric

Theodoxus prevostianus compared with Amanita muscaria

Key Differences

Black Nerite is Endangered while Fly Agaric is Least Concern.

Taxonomic Classification

Rank	Black Nerite	Fly Agaric
Kingdom	Animalia (प्राणी)	Fungi (फफूंद)
Phylum	Mollusca (मोलस्का)	Basidiomycota (Club Fungi)
Class	Gastropoda (उदरपाद)	Agaricomycetes (Mushrooms)
Order	Cycloneritida (Cycloneritida)	Agaricales (Gilled Mushrooms)
Family	Neritidae	Agaricaceae (Agarics)
Genus	Theodoxus	Amanita (Amanitas)
Species	Theodoxus prevostianus	Amanita muscaria

Conservation Status

Black Nerite

EN — Endangered

Fly Agaric

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Black Nerite	Fly Agaric
Diet	—	Decomposer
Average Lifespan	—	1 years
Average Length	—	20 cm
Average Weight	—	100 g

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.

Fly Agaric

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (New Zealand), and South America (Brazil, Chile, Colombia).

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.

Fly Agaric

Among the most iconic and recognizable fungi on Earth, fly agaric mushrooms display striking red caps with white flecked warts across boreal forests of the Northern Hemisphere. Despite their fairy-tale appearance, they contain potent psychoactive compounds including muscimol and ibotenic acid and are moderately toxic. They form critical mycorrhizal symbioses with birch, pine, and spruce trees, exchanging mineral nutrients for carbon and playing essential roles in boreal forest nutrient cycling.