Hector s Dolphin vs Lesser Siren

Cephalorhynchus hectori compared with Siren intermedia

Key Differences

• Hector s Dolphin is Endangered while Lesser Siren is Least Concern.

Taxonomic Classification

Rank	Hector s Dolphin	Lesser Siren
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Cetacea (Whales & Dolphins)	Caudata (Caudata)
Family	Delphinidae (Oceanic Dolphins)	Sirenidae
Genus	Cephalorhynchus	Siren
Species	Cephalorhynchus hectori	Siren intermedia

Evolutionary Relationship

Hector s Dolphin and Lesser Siren share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Hector s Dolphin

EN — Endangered

Lesser Siren

LC — Least Concern

Physical Characteristics

Attribute	Hector s Dolphin	Lesser Siren
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hector s Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Lesser Siren

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Distributed across Belgium and Mexico.