Bigeye thresher vs Cow-nosed ray

Alopias pelagicus compared with Rhinoptera bonasus

Key Differences

• Bigeye thresher is Endangered while Cow-nosed ray is Vulnerable.

Taxonomic Classification

Rank	Bigeye thresher	Cow-nosed 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	Myliobatidae
Genus	Alopias	Rhinoptera
Species	Alopias pelagicus	Rhinoptera bonasus

Evolutionary Relationship

Bigeye thresher and Cow-nosed ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

Cow-nosed ray

VU — Vulnerable

Physical Characteristics

Attribute	Bigeye thresher	Cow-nosed ray
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.

Cow-nosed ray

Habitat

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

Range

Found in Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.