Amylax A.Meunier, 1910
Holotype species: Amylax lata Meunier
Original publication and holotype designation: Meunier, A. (1910). Microplancton des Mers de Barents et de Kara. Duc d'Orleans Campagne Arctique de 1907. pp. 1-355, pls I-XXXVII [Atlas]. Bruxelles: Imprimerie Scientifique Charles Bulens, Éditeur.
Taxonomic status: currently recognized as a distinct genus.
Most recent taxonomic treatment adopted: Gómez, F. (2005). A list of free-living dinoflagellate species in the world's oceans. Acta Botanica Croatica 64: 129-212.
Description: Dorsoventrally compressed unicellular biflagellated heterodynamic medium-sized ( 40-75 µm long) cells with a cell wall composed of cellulosic thecal plates. Plate formula Po, 3', 3a, 6", 6c, 7-8s, 6"', 1p, 1"". Plate 1' with ventral pore at it's right side near the posterior end. Cells with distinct apical horn and 2 to several antapical spines. Nucleus elongated, banana-shaped. Chloroplasts present but at least in A. triacantha with phycobilin fluorescence, apparently not of the typical dinophycean type; so far no ultrastructural investigations available.
Information contributed by: M. Elbrächter. The most recent alteration to this page was made on 8 Apr 2020 by Wendy Guiry.
Comments: Habitat : Marine to brackish waters mainly of cold, temperate waters. Meunier (1910) described the genus with Amylax lata as type species. This is apparently a later taxonomical synonym of Gonyaulax triacantha Jörgensen 1899. Kofoid transferred it into the genus Heterodinium Kofoid but in a later paper transferred it back into Gonyaulax. This was followed by most authors until Balech (1977) proposed that the type species of Amylax is a synonym of Gonyaulax triacantha Jörgensen. Sournia (1984) formally introduced the new combination Amylax triacantha. The other species, Meunier (1910) assigned to Amylax are now transferred to Gonyaulax or other related genera.
Numbers of names and species: There are 8 species names in the database at present, as well as 1 infraspecific names. Of the species names, 3 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.
Steidinger, K.A. & Tangen, K. (1996). Dinoflagellates. In: Identifying Marine Phytoplankton. (Tomas, C.R. Eds), pp. 387-584. 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: 07 May 2002 by M.D. Guiry
Verified by: 26 September 2014 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=44614
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 08 May 2021.