163,469 species and infraspecific names are in the database, 22,770 images, 62,968 bibliographic items, 480,353 distributional records.

Diplopsalis R.S.Bergh, 1881

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

Holotype species: Diplopsalis lenticula Bergh

Original publication and holotype designation: Bergh, R.S. (1881). Der Organismus der Cilioflagellaten. Eine phylogenetische Studie. Morphologisches Jahrbuch 7: 177-288.
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Taxonomic status: currently recognized as a distinct genus.

Gender: This genus name is currently treated as feminine.

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.

Description: Medium-sized (30-60 µm) thecate dinoflagellate of lenticular to spherical shape. Cingulum circular, dividing the theca into 2 more or less equal-sized parts; sulcus characterized by a large flagellar pore and restricted to the hypocone, at the left side with a large wing. Epitheca with an apical pore. Plate formula: Po, X, 3', 1a, 6", 4c, 6(?)s, 5"', 1"". First apical plate 4-sided. Thecal plates smooth, sometimes with large intercalary bands. Cytoplasm clear, sometimes reddish. Nucleus spherical; no chloroplasts. Nutrition by pallium-feeding on diatoms and other phytoplankton. Cysts of brownish color, with coarsely granular surface. Marine plankton, worldwide, mainly in coastal waters. Emend. (Liu et al., 2015: 219).

Information contributed by: M. Elbrächter. The most recent alteration to this page was made on 20 Feb 2020 by M.D. Guiry.

Numbers of names and species: There are 30 species names in the database at present, as well as 9 infraspecific names. Of the species names, 4 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
Popovsky, J. & Pfiester, L.A. (1990). Süßwasserflora von Mitteleuropa. Vol. 6. Dinophyceae (Dinoflagellida). pp. 1-272. Jena & Stuttgart: Gustav Fischer.

Steidinger, K.A. & Tangen, K. (1996). Dinoflagellates. In: Identifying Marine Phytoplankton. (Tomas, C.R. Eds), pp. 387-584. San Diego: Academic Press.

Sournia, A. (1984). Classification et nomemclature de divers dinoflagellés marins (Dinophyceae). Phycologia 23(3): 345-355.

Liu, T., Mertens, K.N. & Gu, H. (2015). Cyst-theca relationship and phylogenetic positions of the diplosalioideans (Peridiniales, Dinophyceae), with description of Niea and Qia gen. nov.. Phycologia 54(2): 210-232.

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: 20 February 2020 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=44637

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 28 September 2021.

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