Balloon shark vs Bigeye thresher

Cephaloscyllium sarawakensis compared with Alopias pelagicus

Key Differences

• Balloon shark is Critically Endangered while Bigeye thresher is Endangered.

Taxonomic Classification

Rank	Balloon shark	Bigeye thresher
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Chondrichthyes (Cartilaginous Fish)	Chondrichthyes (Cartilaginous Fish)
Order	Carcharhiniformes (Ground Sharks)	Lamniformes (Mackerel Sharks)
Family	Scyliorhinidae	Alopiidae
Genus	Cephaloscyllium	Alopias
Species	Cephaloscyllium sarawakensis	Alopias pelagicus

Evolutionary Relationship

Balloon shark and Bigeye thresher share a common ancestor at the Class level: Chondrichthyes. (Cartilaginous Fish)

Conservation Status

Balloon shark

CR — Critically Endangered

Bigeye thresher

EN — Endangered

Physical Characteristics

Attribute	Balloon shark	Bigeye thresher
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Balloon shark

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

Range

Found in Taiwan. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

Balloon shark

The Balloon shark (Cephaloscyllium sarawakensis) is a species in the genus Cephaloscyllium. It is currently classified as Critically Endangered on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

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.

Shared Countries

Both species can be found in 1 countries:

🇹🇼 Taiwan