Hourglass Dolphin vs

Lagenorhynchus cruciger compared with Nitzschia angularis

Key Differences

• Hourglass Dolphin is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Hourglass Dolphin
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (Chordates)	Ochrophyta (Ochrophyta)
Class	Mammalia (Mammals)	Bacillariophyceae (Bacillariophyceae)
Order	Cetacea (Whales & Dolphins)	Bacillariales (Bacillariales)
Family	Delphinidae (Oceanic Dolphins)	Bacillariaceae
Genus	Lagenorhynchus	Nitzschia
Species	Lagenorhynchus cruciger	Nitzschia angularis

Conservation Status

Hourglass Dolphin

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

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

Habitat & Geographic Range

Hourglass Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Habitat

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

Range

Distributed across Brazil, Norway, Sweden, and Taiwan.

Nitzschia angularis is an elongated, pennate freshwater diatom with angular poles and a distinctive raphe positioned along the keel of the frustule. It inhabits eutrophic to mesotrophic freshwater environments including rivers, ponds, and nutrient-enriched lakes. This photosynthetic diatom is associated with moderately enriched freshwater conditions.