Hourglass Dolphin vs Square-spot Bell

Lagenorhynchus cruciger compared with Notocelia tetragonana

Key Differences

• Hourglass Dolphin is Least Concern while Square-spot Bell is Vulnerable.

Taxonomic Classification

Rank	Hourglass Dolphin	Square-spot Bell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Cetacea (Whales & Dolphins)	Lepidoptera (Butterflies & Moths)
Family	Delphinidae (Oceanic Dolphins)	Tortricidae
Genus	Lagenorhynchus	Notocelia
Species	Lagenorhynchus cruciger	Notocelia tetragonana

Evolutionary Relationship

Hourglass Dolphin and Square-spot Bell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Hourglass Dolphin

LC — Least Concern

Square-spot Bell

VU — Vulnerable

Physical Characteristics

Attribute	Hourglass Dolphin	Square-spot Bell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hourglass Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Square-spot Bell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Norway, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.