Brook Floater vs marsh fritillary

Alasmidonta varicosa compared with Euphydryas aurinia

Key Differences

• Brook Floater is Vulnerable while marsh fritillary is Extinct.

Taxonomic Classification

Rank	Brook Floater	marsh fritillary
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Lepidoptera (Butterflies & Moths)
Family	Unionidae	Nymphalidae (Brush-footed Butterflies)
Genus	Alasmidonta	Euphydryas
Species	Alasmidonta varicosa	Euphydryas aurinia

Evolutionary Relationship

Brook Floater and marsh fritillary share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

marsh fritillary

EX — Extinct

Physical Characteristics

Attribute	Brook Floater	marsh fritillary
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Floater

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

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

marsh fritillary

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (38 countries).

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.

marsh fritillary

marsh fritillary (Euphydryas aurinia) is classified as Extinct (EX) on the IUCN Red List. This species has been declared extinct, with no known living individuals remaining in the wild or in captivity.