151,799 species and infraspecific names are in the database, 20,666 images, 58,653 bibliographic items, 387,875 distributional records.

Tetraparma B.C.Booth, 1987

Classification:
Empire Eukaryota
Kingdom Chromista
Phylum Ochrophyta
Class Bolidophyceae
Order Parmales
Family Triparmaceae

Holotype species: Tetraparma pelagica B.C.Booth & H.J.Marchant

Original publication and holotype designation: Booth, B.C. & Marchant, H.J. (1987). Parmales, a new order of marine chrysophytes, with descriptions of three new genera and seven new species. Journal of Phycology 23: 245-260.

Taxonomic status: currently recognized as a distinct genus.

Most recent taxonomic treatment adopted: Kristiansen, J. & Preisig, H.R. (2001). Encyclopedia of Chrysophyte genera. Bibliotheca Phycologica 110: 1-260.

Description: Small unicells, 3-5 &m in diam.; cell wall of 8 plates - 4 small round plates (shield plates), and 4 triradiate plates. Plates papillate or striate. Shield plates may have everted rims. Ultrastructure presumably as in Triparma. Reproduction has not been observed to date. A common marine genus of the Parmales, which contains planktonic marine cells with cell walls composed of a small number of siliceous plates of various shapes all fitting together edge to edge. The genera Triparma and Pentalamina are closely related to Tetraparma. Tetraparma occurs with Triparma in waters of the open ocean and near ice-influenced coasts. Major populations occur in the subarctic Pacific and Antarctic oceans and in coastal Newfoundland waters. Related forms with smooth plates have been observed in deep waters and sediments of the Pacific Ocean (Silver and others (1980), Stradner and Allram (1982)). Variations in plate form illustrated in Marchant and McEldowney (1986). Emend. Konno & Jordan 2007: 110.

Information contributed by: B. Booth. The most recent alteration to this page was made on 23 Oct 2017 by Wendy Guiry.

Comments: Description emended by Konno & Jordan (2007: 615).

Numbers of names and species: There are 6 species names in the database at present, of which 6 have 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.

References
Bérard-Therriault, L., Poulin, M. & Bossé, L. (1999). Guide d'identification du phytoplancton marin de l'estuaire et du Golfe du Saint-Laurent incluant également certains protozoaires. Publication Spéciale Canadienne des Sciences Halieutiques et Aquatiques 128: 1-387.

Konno, S., Ohira, R., Komuro, C., Harada, N. & Jordan R.W. (2007). Six new taxa of subarctic Parmales (Chrysophyceae). Journal of Nannoplankton Research 29: 108-12, 8 pls.

Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

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: 27 May 2002 by Elizabeth Moran

Verified by: 12 September 2014 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=kf1f16639e3f43959

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 28 May 2018.

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