vs

Melosira dubia compared with Melosira octogona

Taxonomic Classification

Rank
Kingdom same	Chromista (أسناخ صبغية)	Chromista (أسناخ صبغية)
Phylum same	Ochrophyta (طحالب داكنة)	Ochrophyta (طحالب داكنة)
Class same	Bacillariophyceae (Bacillariophyceae)	Bacillariophyceae (Bacillariophyceae)
Order same	Melosirales (Melosirales)	Melosirales (Melosirales)
Family same	Melosiraceae	Melosiraceae
Genus same	Melosira	Melosira
Species	Melosira dubia	Melosira octogona

Evolutionary Relationship

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

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 and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil, Norway, and Sweden.

Habitat

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

Range

Distributed across Brazil, Norway, and Sweden.

Melosira octogona is a filamentous, centric freshwater diatom forming long chains of cylindrical cells with octagonal cross-sections visible in girdle view. It inhabits benthic and planktonic zones in rivers, streams, and turbid freshwater environments across temperate regions. This photosynthetic diatom is common in riverine and turbid freshwater habitats.

Shared Countries

Both species can be found in 3 countries:

🇧🇷 Brazil 🇳🇴 Norway 🇸🇪 Sweden