# Mictyris
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> Source: https://en.wikipedia.org/wiki/Mictyris
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{{Short description|Genus of crabs}}
{{Automatic taxobox
| image = Aus soldier Crab.jpg
| image_caption = Light-blue soldier crab, ''[Mictyris longicarpus](/source/Mictyris_longicarpus)''
| parent_authority = [Dana](/source/James_Dwight_Dana), 1851
| taxon = Mictyris
| authority = [Latreille](/source/Pierre_Andr%C3%A9_Latreille), 1806
| display_parents = 2
}}
'''''Mictyris''''' is a [genus](/source/genus) of brightly coloured [crab](/source/crab)s, placed in its own [taxonomical](/source/Taxonomy_(biology)) [family](/source/Family_(taxonomy)), the '''Mictyridae'''.[{{cite journal|journal=[Raffles Bulletin of Zoology](/source/Raffles_Bulletin_of_Zoology) |year=2008 |volume=17 |pages=1–286 |title=Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world |author=Peter K. L. Ng |author2=Danièle Guinot |author3=Peter J. F. Davie |name-list-style=amp |url=http://rmbr.nus.edu.sg/rbz/biblio/s17/s17rbz.pdf |url-status=dead |archive-url=https://web.archive.org/web/20110606061453/http://rmbr.nus.edu.sg/rbz/biblio/s17/s17rbz.pdf |archive-date=2011-06-06 }}] It inhabits the central [Indo-West Pacific](/source/Indo-Pacific) region. These crabs congregate on [mud flat](/source/mud_flat)s or [beach](/source/beach)es in groups of a few thousand, and filter sand or mud for microscopic organisms. They congregate during [low tide](/source/Tide), and bury themselves in the sand during high tide or whenever they are threatened. This is done in wet sand, and they dig in a [corkscrew](/source/Corkscrew_(tool)) pattern, leaving many small round pellets of sand behind them.
==Species==
The genus contains eight species:[{{cite WoRMS |author=Peter Davie |year=2010 |title=''Mictyris'' Latreille, 1806 |id=439492 |access-date=April 15, 2012}}][{{cite book |author=Peter J. F. Davie |author2=Hsi-Te Shih |author3=Benny K. K. Chan |name-list-style=amp |year=2010 |chapter=A new species of ''Mictyris'' (Decapoda, Brachyura, Mictyridae) from the Ryukyu Islands, Japan |title=Studies on Brachyura: a Homage to Danièle Guinot |isbn=9789047424178 |pages=83–105 |url=http://decapoda.nhm.org/pdfs/31484/31484.pdf |doi=10.1163/ej.9789004170865.i-366.61|url-status=live|archive-url=https://web.archive.org/web/20191206161223/https://decapoda.nhm.org/pdfs/31484/31484.pdf|archive-date=2019-12-06}}][{{cite journal|journal=[Journal of the Royal Society of Western Australia](/source/Journal_of_the_Royal_Society_of_Western_Australia) |year=2011 |volume=94 |pages=45–54 |title=A new species of Mictyris (Crustacea: Decapoda: Brachyura: Mictyridae) recorded from northern Australia Kimberley region to Cape York |author=Unno, J. |author2=Semeniuk, V.|name-list-style=amp |url=https://www.rswa.org.au/publications/Journal/94(1)/UnnoSemeniukpp.45-54.pdf}}]
{| class="wikitable"
|-
! Image !! Scientific name !! Distribution
|-
|120px ||''[Mictyris brevidactylus](/source/Mictyris_brevidactylus)'' Stimpson, 1858 || Japan, China (including the type location, Hong Kong), Taiwan, Singapore, and parts of Indonesia (Karakelong, Bawean and Ambon Island)
|-
| ||''[Mictyris darwinensis](/source/Mictyris_darwinensis)'' Unno & Semeniuk, 2011 || Australia(Kimberley to Cape York)
|-
| ||''[Mictyris guinotae](/source/Mictyris_guinotae)'' Davie ''et al.'', 2010 || Ryukyu Islands of Japan
|-
| ||''[Mictyris livingstonei](/source/Mictyris_livingstonei)'' McNeill, 1926 ||Australia
|-
|120px ||''[Mictyris longicarpus](/source/Mictyris_longicarpus)'' Latreille, 1806 || Bay of Bengal to New Caledonia and Australia
|-
| ||''[Mictyris occidentalis](/source/Mictyris_occidentalis)'' Unno, 2008 || Australia(King Bay, Dampier Archipelago)
|-
|120px ||''[Mictyris platycheles](/source/Mictyris_platycheles)'' H. Milne-Edwards, 1852 || Tasmania and Australia(Victoria to Queensland)
|-
| ||''[Mictyris thailandensis](/source/Mictyris_thailandensis)'' Davie, Wisespongpand & Shih, 2013 ||Thailand
|-
|}
The predictable behaviour of these crabs has led them to be used in experiments in a form of [billiard ball computer](/source/billiard_ball_computer).[{{cite web |author=Jacob Aron |date=April 12, 2012 |title=Computers powered by swarms of crabs |publisher=[New Scientist](/source/New_Scientist) |url=https://www.newscientist.com/blogs/onepercent/2012/04/researchers-build-crab-powered.html |access-date=April 15, 2012|url-status=dead|archive-url=https://archive.today/20120905003414/http://www.newscientist.com/blogs/onepercent/2012/04/researchers-build-crab-powered.html|archive-date=2012-09-05}}][{{cite journal |author=Yukio-Pegio Gunji |author2=Yuta Nishiyama |author3=Andrew Adamatzky |author3-link=Andrew Adamatzky |name-list-style=amp |year=2011 |title=Robust soldier crab ball gate |journal=[Complex Systems](/source/Complex_Systems_(journal)) |volume=20 |page=2 |arxiv=1204.1749|bibcode=2012arXiv1204.1749G}}]
==References==
{{Reflist}}
{{Taxonbar|from=Q1318121}}
{{Portal bar|Crustaceans}}
Category:Ocypodoidea
Category:Decapod genera
Category:Taxa named by Pierre André Latreille
{{Ocypodoidea-stub}}
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Adapted from the Wikipedia article [Mictyris](https://en.wikipedia.org/wiki/Mictyris) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Mictyris?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.