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158,879 species and infraspecific names are in the database, 22,385 images, 61,551 bibliographic items, 457,090 distributional records.

Parahistioneis Kofoid & Skogsberg, 1928

Classification:
Empire Eukaryota
Kingdom Chromista
Subkingdom Harosa (supergroup SAR)
Infrakingdom Halvaria
Phylum Miozoa
Subphylum Myzozoa
Infraphylum Dinozoa
Superclass Dinoflagellata
Class Dinophyceae
Order Dinophysales
Family Dinophysaceae

Holotype species: Parahistioneis diomedeae (Kofoid & J.R.Michener) Kofoid & Skogsberg

Currently accepted name for the type species: Histioneis diomedeae Kofoid & J.R.Michener

Original publication and holotype designation: Kofoid, C.A. & Skogsberg, T. (1928). Reports on the scientific results of the expedition to the Eastern Tropical Pacific, in charge of Alexander Agassiz, by the U.S. Fish Commission Steamer "Albatross" from October 1904 to March 1905, Lieut. Commander L.M. Garrett, U.S.N., Commanding. [No.] XXXV. The Dinoflagellata: the Dinophysoidae. Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass. 51: 1-766.
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Taxonomic status: currently regarded as a synonym of Histioneis.

Most recent taxonomic treatment adopted: Kawai, H. & Nakayama, T. (2015). Introduction (Heterokontobionta p.p.), Cryptophyta, Dinophyta, Haptophyta, Heterokontophyta (except Coscinodiscophyceae, Mediophyceae, Fragilariophyceae, Bacillariophyceae, Phaeophyceae, Eustigmatophyceae), Chlorarachniophyta, Euglenophyta. In: Syllabus of plant families. Adolf Engler's Syllabus der Pflanzenfamilien. Ed. 13. Phototrophic eukaryotic Algae. Glaucocystophyta, Cryptophyta, Dinophyta/Dinozoa, Haptophyta, Heterokontophyta/Ochrophyta, Chlorarachnniophyta/Cercozoa, Chlorophyta, Streptophyta p.p. (Frey, W. Eds), pp. 11-189. Stuttgart: Borntraeger Science Publishers.

Taxonomic notes
The results of investigations carries out by Jensen & Daugberg (2011) to some extent support Parahistoneis as a valid genus but additional molecular data are needed to justify this. - (19 Aug 2011) - Wendy Guiry

Description: Species in this genus are very much like those of Histioneis Stein but differ mainly by the absence of the submarginal cross-rib of the posterior cingular list. This is regarded as not sufficient for separating the species at the genus level, consequently Balech (1971b) has considered Parahistioneis synonymous with Histioneis Stein.

Information kindly contributed by M. Elbrächter but may now be outdated.

Numbers of names and species: There are 20 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
Hastrup Jensen, M. & Daugbjerg, N. (2009). Molecular phylogeny of selected species of the order Dinophysiales (Dinophyceae) - testing the hypothesis of a dinophysioid radiation. Journal of Phycology 45(5): 1136-1152.

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: 07 May 2002 by M.D. Guiry

Verified by: 24 May 2017 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=44670

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 12 August 2020.

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