Balloon shark vs Pacific Spiny-rat

Cephaloscyllium sarawakensis compared with Proechimys decumanus

Key Differences

• Balloon shark is Critically Endangered while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Balloon shark	Pacific Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Carcharhiniformes (Ground Sharks)	Rodentia (Rodents)
Family	Scyliorhinidae	Echimyidae
Genus	Cephaloscyllium	Proechimys
Species	Cephaloscyllium sarawakensis	Proechimys decumanus

Evolutionary Relationship

Balloon shark and Pacific Spiny-rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Balloon shark

CR — Critically Endangered

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Balloon shark	Pacific Spiny-rat
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.

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.