Big Finner vs Broadgill Catshark

Balaenoptera physalus compared with Apristurus riveri

Key Differences

• Big Finner is Endangered while Broadgill Catshark is Least Concern.

Taxonomic Classification

Rank	Big Finner	Broadgill Catshark
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Mammalia (млекопитающие)	Chondrichthyes (хрящевые рыбы)
Order	Cetacea (Whales & Dolphins)	Carcharhiniformes (кархаринообразные)
Family	Balaenopteridae (Rorquals)	Scyliorhinidae
Genus	Balaenoptera (Rorquals)	Apristurus
Species	Balaenoptera physalus	Apristurus riveri

Evolutionary Relationship

Big Finner and Broadgill Catshark share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

Big Finner

EN — Endangered

Broadgill Catshark

LC — Least Concern

Physical Characteristics

Attribute	Big Finner	Broadgill Catshark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Finner

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Broadgill Catshark

Habitat

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

Range

Found in Venezuela.

Big Finner

Big Finner (Balaenoptera physalus) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

Broadgill Catshark

The Broadgill Catshark (Apristurus riveri) is a species in the genus Apristurus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Shared Countries

Both species can be found in 1 countries:

🇻🇪 Venezuela