156,334 species and infraspecific names are in the database, 22,018 images, 60,425 bibliographic items, 446,039 distributional records.

Cymatodiscus N.I.Hendey, 1958

Holotype species: Cymatodiscus planetophorus (F.Meister) Hendey

Taxonomic status: currently recognized as a distinct genus.

Description: Cells solitary. Valves elliptic, slightly bent on the long axis throwing the valve face into two planes; central area of the valve face strongly depressed, furnished with large scattered papillose puncta. Beyond the central area the puncta are irregularly crowded into radiating striae, decreasing in size as they approach the margin. Margin furnished with processes, 1-2 at each pole and 2 on one rim about equidistant from the terminal puncta. Until EM studies of Cymatodiscus are completed, it is not possible to place this genus in its correct suborder. This rarely reported taxon has been recorded in the plankton from Saigon and on artifical substrates from the West African coast.

Information contributed by: M.C. Amspoker. The most recent alteration to this page was made on 31 May 2014 by M.D. Guiry.

Numbers of names and species: There is only one species or infraspecific name in the database at present, which has been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..

Names: ('C' indicates a name that is accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):

Click here to also show infraspecific names in the list below.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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.

Created: 02 November 2003 by M.D. Guiry

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Citing AlgaeBase
Please cite this record as:
Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 19 September 2019.

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