Brook Floater vs Marbled catshark

Alasmidonta varicosa compared with Hemiscyllium trispeculare

Key Differences

• Brook Floater is Vulnerable while Marbled catshark is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Marbled catshark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Elasmobranchii
Order	Unionida (Unionida)	Orectolobiformes (Orectolobiformes)
Family	Unionidae	Hemiscylliidae
Genus	Alasmidonta	Hemiscyllium
Species	Alasmidonta varicosa	Hemiscyllium trispeculare

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Marbled catshark

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Marbled catshark
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.

Marbled catshark

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.