Captain Cook's Bean Snail vs Common Fieldcap

Partula faba compared with Agrocybe pediades

Key Differences

• Captain Cook's Bean Snail is Extinct in the Wild while Common Fieldcap is Least Concern.

Taxonomic Classification

Rank	Captain Cook's Bean Snail	Common Fieldcap
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (Mollusks)	Basidiomycota (Club Fungi)
Class	Gastropoda (Gastropoda)	Agaricomycetes (Mushrooms)
Order	Stylommatophora (Stylommatophora)	Agaricales (Gilled Mushrooms)
Family	Partulidae	Strophariaceae
Genus	Partula	Agrocybe
Species	Partula faba	Agrocybe pediades

Conservation Status

Captain Cook's Bean Snail

EW — Extinct in the Wild

Common Fieldcap

LC — Least Concern

Physical Characteristics

Attribute	Captain Cook's Bean Snail	Common Fieldcap
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Captain Cook's Bean Snail

Habitat

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

Common Fieldcap

Habitat

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

Range

Found across Europe (5 countries) and North America (United States).

Captain Cook's Bean Snail

The Captain Cook's Bean Snail (Partula faba) is a species in the genus Partula. It is currently classified as Extinct in the Wild (EW) on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Common Fieldcap

The Common Fieldcap (<em>Agrocybe pediades</em>) is a saprotrophic fungus belonging to the genus Agrocybe within the family Strophariaceae. It typically produces small, tan to pale brown cap-shaped fruiting bodies and is often found growing in clusters or scattered on lawns, grassy areas, forest floors, decomposing wood, and soil-rich ecosystems. The species typically inhabits forest floors, decomposing wood, and soil ecosystems, obtaining nutrients by breaking down dead organic matter. Its geographic range includes several European countries — Belgium, Denmark, Norway, Portugal, and Sweden — as well as the United States in North America. <em>Agrocybe pediades</em> is assessed as Least Concern on the IUCN Red List, reflecting its broad distribution and apparent stability. Biological traits of this species, including specific data on fruiting body size, lifespan, and ecological preferences, remain poorly documented in the scientific literature. Like other members of its genus, it typically fruits during warmer months and often appears after rainfall in nutrient-rich grassland and woodland habitats.