Haviside s Dolphin vs Lesser Siren

Cephalorhynchus heavisidii compared with Siren intermedia

Key Differences

• Haviside s Dolphin is Near Threatened while Lesser Siren is Least Concern.

Taxonomic Classification

Rank	Haviside 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 heavisidii	Siren intermedia

Evolutionary Relationship

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

Conservation Status

Haviside s Dolphin

NT — Near Threatened

Lesser Siren

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Haviside 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.