Brook Floater vs Delta-spotted Spiketail

Alasmidonta varicosa compared with Cordulegaster diastatops

Key Differences

• Brook Floater is Vulnerable while Delta-spotted Spiketail is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Delta-spotted Spiketail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Odonata (Odonata)
Family	Unionidae	Cordulegastridae
Genus	Alasmidonta	Cordulegaster
Species	Alasmidonta varicosa	Cordulegaster diastatops

Evolutionary Relationship

Brook Floater and Delta-spotted Spiketail share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Delta-spotted Spiketail

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Delta-spotted Spiketail
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.

Delta-spotted Spiketail

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in United States.

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.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States