vs Hamlyn s Monkey

Chrysosphaerella annulata compared with Cercopithecus hamlyni

Key Differences

is Not Evaluated while Hamlyn s Monkey is Vulnerable.

Taxonomic Classification

Rank		Hamlyn s Monkey
Kingdom	Chromista (色藻界)	Animalia (动物界)
Phylum	Ochrophyta (淡色藻门)	Chordata (脊索动物门)
Class	Chrysophyceae (丽生菌纲)	Mammalia (哺乳動物)
Order	Ochromonadales (棕鞭藻目)	Primates (灵长目)
Family	Paraphysomonadaceae	Cercopithecidae (Old World Monkeys)
Genus	Chrysosphaerella	Cercopithecus
Species	Chrysosphaerella annulata	Cercopithecus hamlyni

Conservation Status

NE — Not Evaluated

Hamlyn s Monkey

VU — Vulnerable

Physical Characteristics

Attribute		Hamlyn s Monkey
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.

Hamlyn s Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Chrysosphaerella annulata is a colonial freshwater chrysophyte microalga in the genus Chrysosphaerella, class Chrysophyceae. Unlike unicellular loricate chrysophytes, Chrysosphaerella species form spherical or ellipsoidal free-floating colonies in which individual cells are embedded in a common gelatinous matrix. The individual cells bear long siliceous scales with distinctive ring-like or annular structures — referenced by the species epithet annulata — projecting outward from the colony surface, giving the colony a spiny appearance under microscopy. These siliceous scales are species-specific and their morphology, as revealed through electron microscopy, is the primary character for identifying Chrysosphaerella species. C. annulata has been recorded from Norwegian and Swedish freshwater environments, consistent with the Scandinavian emphasis in chrysophyte research and the high diversity of chrysophytes in boreal freshwater systems. Chrysosphaerella colonies are planktonic, inhabiting the limnetic zone of oligotrophic to mesotrophic lakes where they may form locally conspicuous populations during favorable conditions. The species uses chlorophylls a and c with fucoxanthin for photosynthesis, contributing to primary production. Chrysosphaerella scales can accumulate in lake sediments, providing a record of past community composition and environmental conditions. C. annulata has not been assessed under IUCN criteria and is classified as Not Evaluated. Its documentation contributes to understanding the diversity of colonial chrysophyte forms in northern European freshwater ecosystems.