Actiniscus (Ehrenberg) Ehrenberg, 1843

Holotype species: Actiniscus pentasterias (Ehrenberg) Ehrenberg

Original publication and holotype designation: Ehrenberg, C.G. (1843). Über die Verbreitung des jetzt wirkenden kleinsten organischen lebens in Asien, Australien und Afrika und über die vorherrschende bildung auch des oolithkalkes der Juraformation aus kleinen polythalamischen thieren. Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königlich-Preussischen Akademie der Wissenschaften zu Berlin 1843: 100-106.

Description: Slightly compressed biflagellated cells of medium-sized (30-70 µm) with a slightly displaced cingulum and well-developed sulcus giving the cells an appearence of Gymnodinium Stein. Differs from Gymnodinium by the presence of siliceous internal skeleton composed of 2 equal parts composed of a ring from which 5 (4-8) star-like arms radiate. No chloroplasts, nucleus enclosed in the internal skeleton. Marine plankton, of worldwide distribution

Information contributed by: M. Elbrächter. The most recent alteration to this page was made on 2018-10-16 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as masculine.

Most recent taxonomic treatment adopted: Moestrup, Ø. & Calado, A.J. (2018). Süßwasserflora von Mitteleuropa. Dinophyceae. Vol. 6 pp. [i]-xii, [1]-560, 421 figures. Berlin: Springer Spektrum.

Comments: According to Bérard-Therriault et al. (1999: 163) this genus is a member of the family Actiniscaceae. Popovsky & Pfiester (1990: 122) concurs with this view.

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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=44606

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 16 October 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024