Big Finner vs Lined lanternshark

Balaenoptera physalus compared with Etmopterus dislineatus

Key Differences

• Big Finner is Endangered while Lined lanternshark is Least Concern.

Taxonomic Classification

Rank	Big Finner	Lined lanternshark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Squaliformes (Squaliformes)
Family	Balaenopteridae (Rorquals)	Etmopteridae
Genus	Balaenoptera (Rorquals)	Etmopterus
Species	Balaenoptera physalus	Etmopterus dislineatus

Evolutionary Relationship

Big Finner and Lined lanternshark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big Finner

EN — Endangered

Lined lanternshark

LC — Least Concern

Physical Characteristics

Attribute	Big Finner	Lined lanternshark
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.

Lined lanternshark

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.