Hourglass Dolphin vs Polynesian Tree Snail

Lagenorhynchus cruciger compared with Samoana attenuata

Key Differences

• Hourglass Dolphin is Least Concern while Polynesian Tree Snail is Critically Endangered.

Taxonomic Classification

Rank	Hourglass Dolphin	Polynesian Tree Snail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Cetacea (Whales & Dolphins)	Stylommatophora (Stylommatophora)
Family	Delphinidae (Oceanic Dolphins)	Partulidae
Genus	Lagenorhynchus	Samoana
Species	Lagenorhynchus cruciger	Samoana attenuata

Evolutionary Relationship

Hourglass Dolphin and Polynesian Tree Snail share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Hourglass Dolphin

LC — Least Concern

Polynesian Tree Snail

CR — Critically Endangered

Physical Characteristics

Attribute	Hourglass Dolphin	Polynesian Tree Snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hourglass Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Polynesian Tree Snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.