Cook’s swellshark vs Pejegato mallero

Cephaloscyllium cooki compared with Cephaloscyllium fasciatum

Key Differences

• Cook’s swellshark is Data Deficient while Pejegato mallero is Critically Endangered.

Taxonomic Classification

Rank	Cook’s swellshark	Pejegato mallero
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Chondrichthyes (Cartilaginous Fish)	Chondrichthyes (Cartilaginous Fish)
Order same	Carcharhiniformes (Ground Sharks)	Carcharhiniformes (Ground Sharks)
Family same	Scyliorhinidae	Scyliorhinidae
Genus same	Cephaloscyllium	Cephaloscyllium
Species	Cephaloscyllium cooki	Cephaloscyllium fasciatum

Evolutionary Relationship

Cook’s swellshark and Pejegato mallero share a common ancestor at the Genus level: Cephaloscyllium.

Conservation Status

Cook’s swellshark

DD — Data Deficient

Pejegato mallero

CR — Critically Endangered

Physical Characteristics

Attribute	Cook’s swellshark	Pejegato mallero
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cook’s swellshark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Pejegato mallero

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.