Brook Floater vs Faded Pincertail

Alasmidonta varicosa compared with Onychogomphus costae

Key Differences

• Brook Floater is Vulnerable while Faded Pincertail is Near Threatened.

Taxonomic Classification

Rank	Brook Floater	Faded Pincertail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Odonata (Odonata)
Family	Unionidae	Gomphidae
Genus	Alasmidonta	Onychogomphus
Species	Alasmidonta varicosa	Onychogomphus costae

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Faded Pincertail

NT — Near Threatened

Physical Characteristics

Attribute	Brook Floater	Faded Pincertail
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.

Faded Pincertail

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

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.