Irrawaddy dolphin vs Square-spot Bell

Orcaella brevirostris compared with Notocelia tetragonana

Key Differences

• Irrawaddy dolphin is Endangered while Square-spot Bell is Vulnerable.

Taxonomic Classification

Rank	Irrawaddy 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	Orcaella	Notocelia
Species	Orcaella brevirostris	Notocelia tetragonana

Evolutionary Relationship

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

Conservation Status

Irrawaddy dolphin

EN — Endangered

Square-spot Bell

VU — Vulnerable

Physical Characteristics

Attribute	Irrawaddy dolphin	Square-spot Bell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy 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.