163,310 species and infraspecific names are in the database, 22,769 images, 62,922 bibliographic items, 478,460 distributional records.

Siluania Karpov, 1998

Classification:
Empire Eukaryota
Kingdom Chromista
Phylum Bigyra
Class Bikosea
Order Bicoecida
Family Siluaniaceae

Holotype species: Siluania monomastiga Karpov

Original publication:Karpov, S.A., Kersanach, R. & Williams, D.M. (1998). Ultrastructure and 18S rRNA gene sequence of a small heterotrophic flagellate Siluania monomastiga gen. et sp. nov. (Bicosoecida). European Journal of Protistology 34: 415-425.

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: Cells colorless, naked, uniflagellate, usually living planktonic and not gliding on surfaces. Cell shape ovoid to pear-like, with a rounded posterior end. Apically with a permanent cytostome that leads into a tube (cytopharynx), and a food vacuole located at the distal end of the tube. Flagellum inserted subapically, emerging from a pit or small flagellar pocket, with a unilateral array of tripartite tubular flagellar hairs; flagellar end blunt. One or two additional very short basal bodies may occur. Near flagellar pocket vesicles which may be part of the contractile vacuole system. Cells may lose flagellum and may form propagules (resting stages) that lack cell walls. Found in cold fresh waters i Russia. For classification of Siluania and other bicosoecid flagellates see Bicosoeca.

Information contributed by: H.R.Preisig. The most recent alteration to this page was made on 26 Aug 2004 by Robert Wilkes.

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):

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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: 23 May 2002 by Elizabeth Moran

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Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 17 September 2021.

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