Bigeye thresher vs Underwood’s Bonneted Bat

Alopias pelagicus compared with Eumops underwoodi

Key Differences

• Bigeye thresher is Endangered while Underwood’s Bonneted Bat is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Underwood’s Bonneted Bat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Lamniformes (Mackerel Sharks)	Chiroptera (Bats)
Family	Alopiidae	Molossidae
Genus	Alopias	Eumops
Species	Alopias pelagicus	Eumops underwoodi

Evolutionary Relationship

Bigeye thresher and Underwood’s Bonneted Bat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

Underwood’s Bonneted Bat

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Underwood’s Bonneted Bat
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.

Underwood’s Bonneted Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.