Balloon shark vs Johan s Spiny Mouse

Cephaloscyllium sarawakensis compared with Acomys johannis

Key Differences

• Balloon shark is Critically Endangered while Johan s Spiny Mouse is Least Concern.

Taxonomic Classification

Rank	Balloon shark	Johan s Spiny Mouse
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	Muridae (Mice & Rats)
Genus	Cephaloscyllium	Acomys
Species	Cephaloscyllium sarawakensis	Acomys johannis

Evolutionary Relationship

Balloon shark and Johan s Spiny Mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Balloon shark

CR — Critically Endangered

Johan s Spiny Mouse

LC — Least Concern

Physical Characteristics

Attribute	Balloon shark	Johan s Spiny Mouse
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.

Johan s Spiny Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.