vs

Petalomonas gigas compared with Petalomonas pusilla

Taxonomic Classification

Rank
Kingdom same	Protozoa (protozoa)	Protozoa (protozoa)
Phylum same	Euglenozoa (Euglenozoa)	Euglenozoa (Euglenozoa)
Class same	Euglenoidea (Euglenoidea)	Euglenoidea (Euglenoidea)
Order same	Petalomonadida (Petalomonadida)	Petalomonadida (Petalomonadida)
Family same	Scytomonadidae	Scytomonadidae
Genus same	Petalomonas	Petalomonas
Species	Petalomonas gigas	Petalomonas pusilla

Evolutionary Relationship

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

View Genus: Petalomonas

Conservation Status

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

Found in Sweden.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Petalomonas gigas is a large, flattened, non-photosynthetic euglenid with a rigid, leaf-shaped cell body and a single emergent flagellum. It inhabits freshwater environments including ponds, soil water films, and sediment surfaces. This heterotrophic protist feeds on bacteria and small organic particles in freshwater benthic habitats.

Petalomonas pusilla is a small, free-living euglenozoan flagellate characterized by its rigid, flattened cell body and single flagellum used for locomotion. It inhabits freshwater and brackish environments, feeding on bacteria and organic particles. Its genus is notable for lacking chloroplasts, making it entirely heterotrophic unlike its photosynthetic euglenid relatives.