Nannotax3 - ntax_non_cocco - Chrysochromulina pringsheimii

Chrysochromulina pringsheimii


Classification: ntax_non_cocco -> Haptophytes -> Prymnesiales -> Chrysochromulinaceae -> Chrysochromulina -> likely pryms -> Chrysochromulina pringsheimii
Sister taxa: C. bergenensis, C. birgeri, C. brachycylindra, C. fragilis, C. mactra, C. mantoniae, C. pringsheimii

Taxonomy:

Citation: Chrysochromulina pringsheimii Parke and Manton 1962
Rank: Species
Basionym: Chrysochromulina pringsheimii Parke and Manton 1962
Taxonomic discussion: not saddle shaped so likely in Prymnesium group (Edvardsen et al. 2011)

Catalog entries: Chrysochromulina pringsheimii

Original description: Motile cells with an easily visible (light microscope) scaly covering; encased cells, usually elongated, cylindrical, clavate or fusiform, occasionally ovoid, with flagellar end often obliquely truncate, when without visible scale-covering cells generally pyriform. Cells strongly metabolic; 14-20 (exceptionally 12-24) µm in length, 5-8 (exceptionally 4-9) µm in breadth. Two flagella and one haptonema arising close together centrally from one end; the flagella subequal to equal, smooth, fairly robust, homo- dynamic, 1½-2 times body length; the haptonema, capable of attaching along its whole length, half the thickness of the flagella, commonly 1-2 times body length when fully extended, but occasionally longer than the flagella. Scales in two layers, the lining layer of ovate plate-scales (average dimensions 17 x 1-3 µm), the outer layer of ovate spined scales (spine 1-1.5 µm long on base 1.9 x 1.4 µm), the spine attached to the edge of the ovate base by four arched struts. Terminal spines very large (12-20 µm long on bases c. 2 µm wide), commonly 3 (2-4) at flagellar pole and 5 (3-6) at non-flagellar pole. An inconspicuous group of small two-layered plates (0.8 x 0.5 µm) present near the flagellar bases.

Chromatophores usually two or four, occasionally one, golden brown, oblong sometimes lobed and bifid towards the non-flagellar end, parietal, each with an internal pyrenoid. Lipid and chrysose (leucosin) produced. Ejectile muciferous bodies distributed in peripheral cytoplasm, usually more frequent towards the flagellar end. Nutrition phototrophic and/or phagotrophic.

Non-toxic to fish. In motile phase asexual reproduction by fission into two daughter-cells, usually of equal size; other stages unknown.

Type images:


Morphology:


Size:

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:

References:

Parke, M. & Manton, I. (1962). Studies on marine flagellates. VI. Chrysochromulina pringsheimii sp. nov. Journal of the Marine Biological Association of the United Kingdom. 42: 391-404. gs


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Chrysochromulina pringsheimii compiled by Jeremy R. Young viewed: 27-9-2022

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