arrayname: original
Taxonomy:
Catalog entries: Chrysochromulina brevifilum
Original description: Motile cells sphaeroidal to pyriform with flagellar pole usually flattened; metaboly of body well-marked particularly at non-flagellar pole; cells 4-7 mm (exceptionally 3.5-11.5 µm) in length or diameter. Two equal, homodynamic, shortly mucronate flagella, 2½-3½ times cell diameter in length and one haptonema, 2-2½ times cell diameter in length when fully extended, arising close together at flattened pole. Periplast covered by very thin sculptured ellipsoid scales, approximately 0.7µm. across, each with a central spine attached by four decurrent ridges, spine length approximately equal to scale diameter.
Cells uninucleate, no stigma. Chromatophores usually 2 or 4, occasionally 1 or 8, golden brown; in motile phase saucer-shaped, ellipsoid or oblong, parietal with small globular body (pyrenoid ?) on inner face of each near the margin towards the non-flagellar pole; in non-motile phase deeply lobed or stellate. Oil and leucosin produced. Muciferous bodies conspicuous, usually inrows,buttheirpositionchangingwiththemetabolyofthebody. Nutrition holophytic and/or phagotrophic. Not toxic to fish.
In motile phase asexual reproduction by fission into 2 or 4 daughter-cells: in non-motile phase by fission of amoeboid cells to produce 4 walled daughter-cells which probably liberate motile phase.
Morphology:
Geological Range:
Last occurrence (top): Extant. Data source:
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source:
Birkhead, M. & Pienaar, R. N. (1994b). The ultrastructure of Chrysochromulina brevifilum Prymnesiophyceae. European Journal of Phycology. 29: 267-280. gs Edvardsen, B., Eikrem, W., Throndsen, J., Sáez, A. G., Probert, I. & Medlin, L. K. (2011). Ribosomal DNA phylogenies and a morphological revision provide the basis for a revised taxonomy of the Prymnesiales (Haptophyta). European Journal of Phycology. 46(3): 202-228. gs Parke, M., Manton, I. & Clarke, B. (1955). Studies on marine flagellates. II. Three new species of Chrysochromulina. Journal of the Marine Biological Association of the United Kingdom. 34: 579-604. gsReferences:
![]() |
Haptolina brevifilum compiled by Jeremy R. Young viewed: 23-3-2025
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=20182 Go to Archive.is to create a permanent copy of this page - citation notes |
![]() |
This policy contains information about your privacy. By posting, you are declaring that you understand this policy:
This policy is subject to change at any time and without notice.
These terms and conditions contain rules about posting comments. By submitting a comment, you are declaring that you agree with these rules:
Failure to comply with these rules may result in being banned from submitting further comments.
These terms and conditions are subject to change at any time and without notice.
Comments