Bigeye thresher vs Little Gray Firefly

Alopias pelagicus compared with Photinus marginellus

Key Differences

• Bigeye thresher is Endangered while Little Gray Firefly is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Little Gray Firefly
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Chondrichthyes (Cartilaginous Fish)	Insecta (Insects)
Order	Lamniformes (Mackerel Sharks)	Coleoptera (Beetles)
Family	Alopiidae	Lampyridae
Genus	Alopias	Photinus
Species	Alopias pelagicus	Photinus marginellus

Evolutionary Relationship

Bigeye thresher and Little Gray Firefly share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bigeye thresher

EN — Endangered

Little Gray Firefly

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Little Gray Firefly
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.

Little Gray Firefly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in Canada.

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.