Sagre filtre vs cachalot pygmé

Etmopterus decacuspidatus compared with Kogia breviceps

Key Differences

• Sagre filtre is Least Concern while cachalot pygmé is Data Deficient.

Taxonomic Classification

Rank	Sagre filtre	cachalot pygmé
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (mammifères)
Order	Squaliformes (Squaliformes)	Cetacea (Whales & Dolphins)
Family	Etmopteridae	Kogiidae
Genus	Etmopterus	Kogia
Species	Etmopterus decacuspidatus	Kogia breviceps

Evolutionary Relationship

Sagre filtre and cachalot pygmé share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Sagre filtre

LC — Least Concern

cachalot pygmé

DD — Data Deficient

Physical Characteristics

Attribute	Sagre filtre	cachalot pygmé
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Sagre filtre

cachalot pygmé

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, Portugal, Sweden, and Taiwan.

Sagre filtre

<em>Etmopterus decacuspidatus</em>, the combtooth lantern shark, is a small deep-sea shark in the family Etmopteridae, assessed as Least Concern on the IUCN Red List. As a member of the lanternshark genus <em>Etmopterus</em>, the species likely possesses bioluminescent photophores along its ventral surface, a characteristic feature of the group used for counter-illumination and possibly intraspecific communication in the deep ocean. The combtooth designation references the multi-cusped tooth structure of the species. Lantern sharks are among the most species-rich shark genera and are distributed across deep oceanic environments worldwide. Specific habitat description and geographic range data are not available for this species in the current record. As with many deep-sea chondrichthyans, comprehensive ecological and biological information is limited. No quantitative biological trait data including body length or weight are recorded for this species.