Balloon shark vs Bare-legged Swiftlet

Cephaloscyllium sarawakensis compared with Aerodramus nuditarsus

Key Differences

• Balloon shark is Critically Endangered while Bare-legged Swiftlet is Least Concern.

Taxonomic Classification

Rank	Balloon shark	Bare-legged Swiftlet
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Aves (Birds)
Order	Carcharhiniformes (Ground Sharks)	Apodiformes (Apodiformes)
Family	Scyliorhinidae	Apodidae
Genus	Cephaloscyllium	Aerodramus
Species	Cephaloscyllium sarawakensis	Aerodramus nuditarsus

Evolutionary Relationship

Balloon shark and Bare-legged Swiftlet share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Balloon shark

CR — Critically Endangered

Bare-legged Swiftlet

LC — Least Concern

Physical Characteristics

Attribute	Balloon shark	Bare-legged Swiftlet
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.

Bare-legged Swiftlet

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway.

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.

Bare-legged Swiftlet

The Bare-legged Swiftlet (Aerodramus nuditarsus) is a species in the genus Aerodramus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.