vs Fulvous Colilargo

Chrysosphaerella longispina compared with Oligoryzomys fulvescens

Key Differences

• is Not Evaluated while Fulvous Colilargo is Least Concern.

Taxonomic Classification

Rank		Fulvous Colilargo
Kingdom	Chromista (хромисты)	Animalia (животные)
Phylum	Ochrophyta (охрофитовые водоросли)	Chordata (хордовые)
Class	Chrysophyceae (Золотистые водоросли)	Mammalia (млекопитающие)
Order	Ochromonadales (Ochromonadales)	Rodentia (грызуны)
Family	Paraphysomonadaceae	Cricetidae
Genus	Chrysosphaerella	Oligoryzomys
Species	Chrysosphaerella longispina	Oligoryzomys fulvescens

Conservation Status

NE — Not Evaluated

Fulvous Colilargo

LC — Least Concern

Physical Characteristics

Attribute		Fulvous Colilargo
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Fulvous Colilargo

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela.

Chrysosphaerella longispina is a colonial chrysophyte alga in the genus Chrysosphaerella, notable for the long silica spines (longispina: Latin, long spine) that project from each cell in the colony. The genus is characterized by spherical or discoid colonies of photosynthetic cells that each secrete siliceous scales and elongated spine-like appendages, making Chrysosphaerella colonies distinctively bristled and visible under light microscopy. The long spines of C. longispina likely serve as anti-predation structures that make the colonies more difficult for zooplankton to ingest. C. longispina is found in cold, oligotrophic freshwater lakes, particularly in Scandinavia, where comprehensive chrysophyte surveys have documented its presence. Chrysosphaerella colonies contribute to freshwater primary production and the cycling of biogenic silica, which upon cell dissolution is deposited in lake sediments as microscopically identifiable remains. These silica structures are widely used by paleolimnologists to reconstruct past changes in lake water chemistry, thermal stratification, and climate. The conservation status of C. longispina has not been assessed by the IUCN; the species is listed as Not Evaluated.