Hourglass Dolphin vs Silky Wave

Lagenorhynchus cruciger compared with Idaea dilutaria

Key Differences

• Hourglass Dolphin is Least Concern while Silky Wave is Endangered.

Taxonomic Classification

Rank	Hourglass Dolphin	Silky Wave
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)	Geometridae
Genus	Lagenorhynchus	Idaea
Species	Lagenorhynchus cruciger	Idaea dilutaria

Evolutionary Relationship

Hourglass Dolphin and Silky Wave share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Hourglass Dolphin

LC — Least Concern

Silky Wave

EN — Endangered

Physical Characteristics

Attribute	Hourglass Dolphin	Silky Wave
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hourglass Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Silky Wave

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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