Hourglass Dolphin vs

Lagenorhynchus cruciger compared with Neidium bisulcata

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)	Naviculales (Naviculales)
Family	Delphinidae (Oceanic Dolphins)	Neidiaceae
Genus	Lagenorhynchus	Neidium
Species	Lagenorhynchus cruciger	Neidium bisulcata

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, Portugal, Sweden, and Taiwan.

Neidium bisulcata is a freshwater pennate diatom in the family Neidiaceae, distinguished by the presence of two longitudinal grooves (sulci) on each valve that give the genus its name. It inhabits soft, acidic to circumneutral freshwater habitats including lakes, bogs, and slow streams. Neidium species are considered indicators of clean, low-conductivity water and are sensitive to organic pollution.