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Chrysochromulina acantha compared with Chrysochromulina ephippium

Taxonomic Classification

Rank
Kingdom same	Chromista (色藻界)	Chromista (色藻界)
Phylum same	Haptophyta (定鞭藻門)	Haptophyta (定鞭藻門)
Class same	Prymnesiophyceae (普林藻纲)	Prymnesiophyceae (普林藻纲)
Order same	Prymnesiales (定鞭金藻目)	Prymnesiales (定鞭金藻目)
Family same	Chrysochromulinaceae	Chrysochromulinaceae
Genus same	Chrysochromulina	Chrysochromulina
Species	Chrysochromulina acantha	Chrysochromulina ephippium

Evolutionary Relationship

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

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, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Habitat

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

Range

Distributed across Brazil, Norway, and Sweden.

Chrysochromulina acantha是一种单细胞定鞭藻，细胞表面覆有长刺状鳞片，外观独特。它栖息于温带和寒冷大洋水域的海洋浮游环境中。这种混合营养微藻既能进行光合作用，也能吞噬细菌获取补充营养。

Chrysochromulina ephippium is a marine haptophyte microalga in the genus Chrysochromulina, class Prymnesiophyceae, order Prymnesiales. The specific epithet ephippium, from Latin meaning saddle, describes a distinctive saddle-shaped morphological feature of the organism — most likely a scale type visible under electron microscopy that is diagnostic for this species. Scale morphology, haptonema length, and cell dimensions collectively define species boundaries within the genus. C. ephippium has been recorded from Norwegian coastal marine waters, a region extensively surveyed for haptophyte diversity during the mid-to-late twentieth century by Norwegian phycologists including Magne Parke and Irene Manton. These surveys established Norway as a center of described Chrysochromulina diversity, with many type specimens collected from fjords and coastal shelf areas. The species is a nanoplankton organism adapted to pelagic coastal habitats, where it occupies a niche as a photosynthetic primary producer, potentially supplemented by phagotrophic feeding on bacteria. Chrysochromulina species contribute to marine carbon cycling and serve as food for microzooplankton and other planktonic grazers. The cell's golden-brown pigmentation reflects a chloroplast composition rich in chlorophylls a and c and fucoxanthin-type carotenoids, shared across the Prymnesiophyceae. C. ephippium has not been formally evaluated under IUCN criteria and is classified as Not Evaluated, consistent with the general approach to marine nanoplankton taxa whose global population status cannot be readily estimated.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden