Bigeye thresher vs Largespot river stingray

Alopias pelagicus compared with Potamotrygon falkneri

Key Differences

• Bigeye thresher is Endangered while Largespot river stingray is Data Deficient.

Taxonomic Classification

Rank	Bigeye thresher	Largespot river stingray
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	Potamotrygonidae
Genus	Alopias	Potamotrygon
Species	Alopias pelagicus	Potamotrygon falkneri

Evolutionary Relationship

Bigeye thresher and Largespot river stingray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

Largespot river stingray

DD — Data Deficient

Physical Characteristics

Attribute	Bigeye thresher	Largespot river stingray
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.

Largespot river stingray

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Brazil.

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.