160,994 species and infraspecific names are in the database, 22,718 images, 62,592 bibliographic items, 473,223 distributional records.

Apedinella Throndsen, 1971

Empire Eukaryota
Kingdom Chromista
Phylum Ochrophyta
Class Dictyochophyceae
Order Pedinellales
Family Pedinellaceae

Holotype species: Apedinella spinifera (Throndsen) Throndsen

Currently accepted name for the type species: Apedinella radians (Lohmann) P.H.Campbell

Original publication and holotype designation: Throndsen, J. (1971). Apedinella gen. nov. and the fine sructure of A. spinifera (Throndsen) comb. nov.. Norwegian Journal of Botany 18: 47-64.

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 solitary, free-swimming, with a single, apical flagellum pointing forward. Flagellum has a wing with a paraxial rod and bears a single row of tubular hairs ("flimmer"). Cell shape rounded truncate, with radial symmetry. Anterior end with a central depression from which flagellum emerges; posterior end rounded. Six (8-l0) elongated, yellowish brown chloroplasts each with an embedded pyrenoid are located concentrically around the median nucleus. The cell surface is covered by delicate, organic scales which give cellulose reaction. The characteristic cell shape, the protruding spiny scales and lack of a trailing pseudopodium are salient features for identification. Easily recognized in phase contrast microscopy, the emanating spiny scales being conspicuous even without staining. Nutrition phototrophic. Asexual reproduction by longitudinal fission; sexual reproduction not known.Stomatocysts thick walled with smooth surface, except for a few slender radially protruding filaments. A.radians is not uncommon in subarctic, temperate and subtropical coastal waters; Atlantic, Mediterranean, Pacific.

Information contributed by: J. Throndsen. The most recent alteration to this page was made on 12 Sep 2014 by M.D. Guiry.

Numbers of names and species: There are 2 species names in the database at present, of which 1 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.

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.

Throndsen, J. (1996). The planktonic marine flagellates. In: Identifying marine phytoplankton. (Tomas, C.R. Eds), pp. 591-730. San Diego: Academic Press.

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

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: 16 April 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=43846

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 14 April 2021.

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