Nannotax3 - ntax_Farinacci - Isochrysis litoralis Nannotax3 - ntax_Farinacci - Isochrysis litoralis

CATALOG - Isochrysis litoralis


Folder trail: ntax_Farinacci -> Haptophytes -> Isochrysis -> Isochrysis litoralis
Folders this level: I. galbana, I. litoralis, I. maritima, I. nuda

Original descriptions of taxa. For coccolithophores, and many calcispheres, these are pages from the Farinacci & Howe Catalog of Calcareous Nannofossils. In other cases (e.g. non-calcifying haptophytes) the data is directly compiled on this site. The "Catalogue of Calcareous Nannofossils" was originally compiled by Prof A. Farinacci 1969-1989, since 2000 it has been updated and extended by Richard Howe - see The Farinacci and Howe Catalog - an Introduction.
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Current identification/main database link: Isochrysis litoralis Billard & Gayral 1972

Compiled data

Citation: Isochrysis litoralis Billard & Gayral 1972
Taxonomic rank: species
Described on page(s) : 290
Type specimens: Holotype: Figs 9, 12 and 13.
Type sample (& lithostrat): culture strain 18
Type age (chronostrat): Modern
Standardised type level: 160_HOLOCENE
Type locality: Aquarium of the Marine Laboratory of Luc-sur-Mer (Calvados), France
Repository Country: France
Farinacci catalog page (& compiler): n/a
Current citation: Isochrysis litoralis Billard & Gayral 1972


Original Description

Young cells non-motile, hemispherical (4-6 x 6-8 µm) or round (5µm); older cells spherical varying in size (5-15µm) with thick pectic envelopes not easily penetrated by stains. Two parietal golden-yellow chromatophores with one intraplastidial pyrenoid per chromatophore. Asexual reproduction by division of the non-motile cells and by production of elongated swarmers (4 x 7µm) with two apical subequal (7-8 and 8-9µm) homodynamic flagella. Swimming movements similar to those of Isochrysis maritima. Cells covered with one layer of oval plate scales (0.3 x 0.18µm) with a thickened margin and radiating ridges.

References:

Billard, C. & Gayral, P. (1972). Two new species of Isochrysis with remarks on the genus Ruttnera. British Phycological Journal. 7(289-297): -. gs


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Isochrysis litoralis: Catalog entry compiled by Jeremy Young. Viewed: 17-2-2025

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