Cook’s swellshark vs Pejegato de Silas

Cephaloscyllium cooki compared with Cephaloscyllium silasi

Key Differences

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

Taxonomic Classification

Rank	Cook’s swellshark	Pejegato de Silas
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 silasi

Evolutionary Relationship

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

Conservation Status

Cook’s swellshark

DD — Data Deficient

Pejegato de Silas

CR — Critically Endangered

Physical Characteristics

Attribute	Cook’s swellshark	Pejegato de Silas
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 de Silas

Habitat

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