Bigeye thresher vs crested arrowhead

Alopias pelagicus compared with Sagittaria cristata

Key Differences

• Bigeye thresher is Endangered while crested arrowhead is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	crested arrowhead
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Chondrichthyes (Cartilaginous Fish)	Liliopsida (Monocots)
Order	Lamniformes (Mackerel Sharks)	Alismatales (Alismatales)
Family	Alopiidae	Alismataceae
Genus	Alopias	Sagittaria
Species	Alopias pelagicus	Sagittaria cristata

Conservation Status

Bigeye thresher

EN — Endangered

crested arrowhead

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	crested arrowhead
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.

crested arrowhead

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

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.