Cameroonian Shrew vs

Crocidura picea compared with Chrysosphaerella longispina

Key Differences

• Cameroonian Shrew is Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Cameroonian Shrew
Kingdom	Animalia (สัตว์)	Chromista (โครมิสตา)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Ochrophyta (Ochrophyta)
Class	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Chrysophyceae (สาหร่ายสีทอง)
Order	Soricomorpha (อันดับตุ่น)	Ochromonadales (Ochromonadales)
Family	Soricidae	Paraphysomonadaceae
Genus	Crocidura	Chrysosphaerella
Species	Crocidura picea	Chrysosphaerella longispina

Conservation Status

Cameroonian Shrew

EN — Endangered

NE — Not Evaluated

Physical Characteristics

Attribute	Cameroonian Shrew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cameroonian Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Cameroonian Shrew

The Cameroonian Shrew (Crocidura picea) is a species in the genus Crocidura. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.