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Psammothidium acidoclinatum compared with Psammothidium lacus-vulcani

Taxonomic Classification

Rank
Kingdom same	Chromista (Chromista)	Chromista (Chromista)
Phylum same	Ochrophyta (Ochrophyta)	Ochrophyta (Ochrophyta)
Class same	Bacillariophyceae (Bacillariophyceae)	Bacillariophyceae (Bacillariophyceae)
Order same	Achnanthales (Achnanthales)	Achnanthales (Achnanthales)
Family same	Achnanthidiaceae	Achnanthidiaceae
Genus same	Psammothidium	Psammothidium
Species	Psammothidium acidoclinatum	Psammothidium lacus-vulcani

Evolutionary Relationship

and share a common ancestor at the Genus level: Psammothidium.

Conservation Status

NE — Not Evaluated

NE — Not Evaluated

Physical Characteristics

Attribute
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Psammothidium acidoclinatum is a small, benthic freshwater diatom found attached to acidic substrates in oligotrophic lakes, bogs, and soft-water streams. Its siliceous cell wall is distinctly asymmetric, with valves shaped to facilitate attachment to sediment grains. This species is a useful bioindicator of water chemistry, particularly acidity, in freshwater ecology studies.

Psammothidium lacus-vulcani is a small benthic diatom in the family Achnanthidiaceae, described from volcanic lake habitats. Its raphe system and silica frustule structure are characteristic of the genus Psammothidium.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden