vs Hourglass Dolphin

Biddulphia rhombus compared with Lagenorhynchus cruciger

Key Differences

• is Not Evaluated while Hourglass Dolphin is Least Concern.

Taxonomic Classification

Rank		Hourglass Dolphin
Kingdom	Chromista (Chromista)	Animalia (Animals)
Phylum	Ochrophyta (Ochrophyta)	Chordata (Chordates)
Class	Bacillariophyceae (Bacillariophyceae)	Mammalia (Mammals)
Order	Biddulphiales (Biddulphiales)	Cetacea (Whales & Dolphins)
Family	Biddulphiaceae	Delphinidae (Oceanic Dolphins)
Genus	Biddulphia	Lagenorhynchus
Species	Biddulphia rhombus	Lagenorhynchus cruciger

Conservation Status

NE — Not Evaluated

Hourglass Dolphin

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Habitat

Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Sweden, and Taiwan.

Hourglass Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Biddulphia rhombus is a centric marine diatom with a distinctly bipolar, rhomboid to broadly lanceolate valve shape bearing prominent horn-like elevations. It inhabits coastal planktonic and benthic environments in temperate to warm seas worldwide. This photosynthetic diatom contributes to marine primary production in neritic coastal waters.