Hourglass Dolphin vs Mountain Plume

Lagenorhynchus cruciger compared with Stenoptilia islandicus

Key Differences

• Hourglass Dolphin is Least Concern while Mountain Plume is Vulnerable.

Taxonomic Classification

Rank	Hourglass Dolphin	Mountain Plume
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)	Pterophoridae
Genus	Lagenorhynchus	Stenoptilia
Species	Lagenorhynchus cruciger	Stenoptilia islandicus

Evolutionary Relationship

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

Conservation Status

Hourglass Dolphin

LC — Least Concern

Mountain Plume

VU — Vulnerable

Physical Characteristics

Attribute	Hourglass Dolphin	Mountain Plume
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hourglass Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Mountain Plume

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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