Bigeye thresher vs Pleated tunicate

Alopias pelagicus compared with Styela plicata

Key Differences

• Bigeye thresher is Endangered while Pleated tunicate is Not Evaluated.

Taxonomic Classification

Rank	Bigeye thresher	Pleated tunicate
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Ascidiacea (Ascidiacea)
Order	Lamniformes (Mackerel Sharks)	Stolidobranchia (Stolidobranchia)
Family	Alopiidae	Styelidae
Genus	Alopias	Styela
Species	Alopias pelagicus	Styela plicata

Evolutionary Relationship

Bigeye thresher and Pleated tunicate share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

Pleated tunicate

NE — Not Evaluated

Physical Characteristics

Attribute	Bigeye thresher	Pleated tunicate
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigeye thresher

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Colombia and Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Pleated tunicate

Habitat

Native to Africa and Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Africa (Senegal, South Africa), Asia (7 countries), Europe (11 countries), North America (Mexico, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Brazil, Uruguay, Venezuela).

Bigeye thresher

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.