Nannotax3 - ntax_non_cocco - Chrysoculter rhomboideus Nannotax3 - ntax_non_cocco - Chrysoculter rhomboideus

Chrysoculter rhomboideus

Classification: ntax_non_cocco -> Haptophytes -> Prymnesiales -> Genera incertae sedis -> Chrysoculter -> Chrysoculter rhomboideus
Sister taxa: C. rhomboideus


Citation: Chrysoculter rhomboideus Nakayama, Yoshida, Noël, Kawachi & Inouye 2005
Rank: Species
Basionym: Chrysoculter rhomboideus Nakayama, Yoshida, Noël, Kawachi & Inouye 2005
Taxonomic discussion: This is clearly a different species to Navisolenia aprilei but probably should be recombined in Navisolenia. Nakayama et al. (2005) do not discuss Navisolenia so may have overlooked it when creating the genus Chrysoculter

Catalog entries: Chrysoculter rhomboideus

Original description: Cells solitary, mostly asymmetric knife-shaped, 10–16 μm long, 3–6 μm wide. Two equal to subequal flagella, 14–26 μm, inserted at the cell apex. Haptonema 4–10 μm, noncoiling. Cells covered by two types of scales. Scales of the inner layer elliptical, 0.35 × 0.18 μm, with a narrow inflexed rim, and a radial pattern. Scales of the outer layer rhomboidal, 1.1 × 0.6 μm, with upright rim (50–80 nm), two projections, and a radial pattern. Rhomboidal scales do not overlap. Two pale yellow chloroplasts, lateral and parietal, are displaced horizontally, each with an immersed pyrenoid. The flagellar transitional region with a terminal transitional plate.

Type images:

Cultures: Strains of this species are maintained in culture, for details see Roscoff Culture Collection.

Geological Range:
Last occurrence (top): within (-Ma, top in "Holocene" stage). Data source:
First occurrence (base): within (-Ma, base in "Holocene" stage). Data source:


Nakayama, T., Yoshida, M., Noël, M. H., Kawachi, M. & Inouye, I. (2005). Ultrastructure and phylogenetic position of Chrysoculter rhomboideus gen. et sp. nov. (Prymnesiophyceae), a new flagellate haptophyte from Japanese coastal waters. Phycologia. 44(4): 369-383. gs


Chrysoculter rhomboideus compiled by Jeremy R. Young viewed: 1-6-2023

Taxon Search:
Advanced Search
AphiaID: not found
Short stables page link: Go to to create a permanent copy of this page - citation notes

Comments (0)

No comments yet on this page. Please do add comments if you spot any problems, or have information to share

Add Comment

* Required information
Captcha Image
Powered by Commentics