{{Short description|Genus of unicellular algae}} {{Automatic taxobox | taxon = Dictyocha | authority = Ehrenberg, 1837 | image = Dictyocha_speculum.jpg | image_caption = ''D. speculum'' | subdivision_ranks = Species | subdivision = * ''D. speculum'' * ''D. fibula'' * ''D. octonaria'' | type_species = Dictyocha speculum | type_species_authority = Ehrenberg, 1837 | synonyms = * ''Hannaites'' {{au|Mandra, 1969}} * ''Akbuluta'' {{au|Özdikmen, 2009}}<ref name="Substitute names for Protozoa"/><ref name="Nakada 2010"/> }}
'''''Dictyocha''''' is a genus of silicoflagellates, marine photosynthetic unicellular protists that take the form of either flagellates or axopodial amoebae. Described by Ehrenberg in 1837, ''Dictyocha'' contains many important species of the marine phytoplankton, some of them responsible for algal blooms that are toxic to fish.<ref name="IGP Silicoflagellata"/>
== Systematics ==
The genus ''Dictyocha'' was described in 1837 by Ehrenberg from Algerian fossil material, and its taxonomy has been based exclusively on the morphology of their siliceous skeletons.<ref name="Chang 2015"/> ''Dictyocha'' was regarded as the sole genus of the entire family Dictyochaceae and order Dictyochales (known as silicoflagellates ''sensu stricto'')<ref name="IGP Silicoflagellata"/> until 2012, when a second genus ''Vicicitus'' was described.<ref name="Vicicitus"/> There are currently four accepted species of ''Dictyocha'':<ref name="Chang 2015"/>
* ''Dictyocha speculum'' {{au|Ehrenberg, 1837}}
* ''Dictyocha fibula'' {{au|Ehrenberg, 1837}}
* ''Dictyocha octonaria'' {{au|Ehrenberg, 1837}}
* ''Dictyocha californica'' {{au|Schrader & Murray, 1983}}<ref name="Hernández-Becerril 2001"/>
== References == <references>
<ref name="IGP Silicoflagellata">{{cite book | chapter = Class Silicoflagellata Lemmermann, 1901 | first1 = Øjvind | last1 = Moestrup | first2 = Charles J. | last2 = O'Kelly | title = An Illustrated Guide to the Protozoa | edition = 2nd | editor-first1 = John J. | editor-last1 = Lee | editor-first2 = Gordon F. | editor-last2 = Leedale | editor-first3 = Phyllis | editor-last3 = Bradbury | publisher = Society of Protozoologists | publication-place = Lawrence, Kansas | date = 2000 | url = https://protistologists.org/publications/illustrated-guide-to-the-protozoa/ | volume = II | pages = 775–782 | chapter-url = https://protistologists.org/wp-content/uploads/2023/07/17SILICOFLAGELLATA.pdf}}</ref>
<ref name="Substitute names for Protozoa">{{cite journal | first1 = Hüseyin | last1 = Özdikmen | date = 2009 | title = Substitute names for some unicellular animal taxa (Protozoa) | journal = Munis Entomology & Zoology | volume = 4 |pages= 233–256 | url = https://www.researchgate.net/publication/266524205_Substitute_names_for_some_unicellular_animal_taxa_Protozoa}}</ref>
<ref name="Vicicitus">{{cite journal | first1 = F. Hoe | last1 = Chang | first2 = Margaret | last2 = McVeagh | first3 = Mark | last3 = Gall | first4 = Peter | last4 = Smith | date = 2012 | title = ''Chattonella globosa'' is a member of Dictyochophyceae: reassignment to ''Vicicitus'' gen. nov., based on molecular phylogeny, pigment composition, morphology and life history | journal = Phycologia | volume = 51 | issue = 4 | pages = 403–420 | doi = 10.2216/10-104.1 }}</ref>
<ref name="Nakada 2010">{{cite journal | title = Nomenclatural notes on some ambiregnal generic names (comments to Özdikmen, 2009) | first1 = Takashi | last1 = Nakada | date = 2010 | journal = Munis Entomology & Zoology | volume = 5 | issue = 1 | pages = 204 –208 | url = https://www.munisentzool.org/yayin/vol5/issue1/204-208.pdf}}</ref>
<ref name="Chang 2015">{{cite journal | first1 = F. Hoe | last1 = Chang | date = 2015-10-20 | title = ''Dictyocha octonaria'' from New Zealand | journal = Phycological Research | volume = 63 | pages = 253–264 | doi=10.1111/pre.12107}}</ref>
<ref name="Hernández-Becerril 2001">{{cite journal | vauthors = Hernández-Becerril DU, Bravo-Sierra E | title = Planktonic Silicoflagellates (Dictyochophyceae) from the Mexican Pacific Ocean | volume = 44 | issue = 5 | date = 2001 | pages = 417–423 | doi = 10.1515/BOT.2001.050 | journal = Botanica Marina}}</ref>
</references> {{taxonbar|from=Q25367449}} Category:Dictyochophyceae Category:Ochrophyte genera Category:Taxa described in 1837