Big eye thresher shark vs Dwarf round ray

Alopias superciliosus compared with Urotrygon nana

Key Differences

• Big eye thresher shark is Vulnerable while Dwarf round ray is Near Threatened.

Taxonomic Classification

Rank	Big eye thresher shark	Dwarf round ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Elasmobranchii
Order	Lamniformes (Mackerel Sharks)	Myliobatiformes (Myliobatiformes)
Family	Alopiidae	Urotrygonidae
Genus	Alopias	Urotrygon
Species	Alopias superciliosus	Urotrygon nana

Evolutionary Relationship

Big eye thresher shark and Dwarf round ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big eye thresher shark

VU — Vulnerable

Dwarf round ray

NT — Near Threatened

Physical Characteristics

Attribute	Big eye thresher shark	Dwarf round ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big eye thresher shark

Habitat

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

Range

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

Dwarf round ray

Big eye thresher shark

The Big eye thresher shark (Alopias superciliosus) is a species in the genus Alopias. It is currently classified as Vulnerable on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.