157,534 species and infraspecific names are in the database, 22,209 images, 60,945 bibliographic items, 458,278 distributional records.

Amyloodinium E.-M.Brown & Hovasse, 1946

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

Holotype species: Amyloodinium ocellatum (E.-M.Brown) E.-M.Brown & Hovasse

Original publication and holotype designation: Brown, E.-M. & Hovasse, R. (1946). Amyloodinium ocellatum Brown, a peridinian parasite on marine fishes A complementary study. Proceedings of the Zoological Society of London 116: 33-46.

Taxonomic status: currently recognized as a distinct genus.

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
"Before 2015, 7 genera, Amyloodinium, Cryptoperidiniopsis,Luciella, Paulsenella, Pfiesteria, Stoeckeria, Tyrannodinium, had been established in the family Pfiesteriaceae" (Jang et al., 2016: 180. - (20 May 2016) - Wendy Guiry

Description: Ectoparasitic dinoflagellates of fishes with triphasic life history. Spores attach to fish skin, preferentially the gill surface, by a complicated attachment plate producing many rhizoids which penetrate the host cytoplasm with their tapering ends. A neck-like structure connects the attachment plate with the pyriform main cell body. Neck contains a ring of electron dense material which is also passed by an up to 10 &m long stomopode, functioning apparently phagocytotically. Food vacuoles are within the main cell body, the trophont. This stage lasts for some days, then the trophont detaches from the host forming dividing cysts (tomont) floating free. Motile dinospores are released from the tomont after several days and can infect new hosts. No chloroplasts. Optimally this entire life cycle takes less than one week. Sexuality not known. Parasitic in warm waters on a wide range of more than 100 marine and estuarine fishes. Can cause massive harm in aquaculture and aquaria. Cultivatable on fish gill cell lines.

Information contributed by: M. Elbrächter. The most recent alteration to this page was made on 23 May 2017 by M.D. Guiry.

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

Gottschling, M & Soehner, S. (2013). An updated list of generic names in the Thoracosphaeraceae. Microorganisms 1(1): 122-126.

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 September 2004 by Robert Wilkes

Verified by: 23 May 2017 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=47275

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 19 February 2020.

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