# Hofsteniidae

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{{Short description|Family of acoels}}
{{Automatic taxobox
| taxon = Hofsteniidae
| authority = Bock, 1923 
}}

'''Hofsteniidae''' is a family of [acoel](/source/acoel)s. This family contains seven species in three genera. <ref name="WORMS">{{cite web |author=Seth Tyler |year=2010 |title=Hofsteniidae|publisher=[World Register of Marine Species](/source/World_Register_of_Marine_Species) |url=http://www.marinespecies.org/aphia.php?p=taxdetails&id=142037|accessdate=May 16, 2019}}</ref>

This worm ranges in size from 100 μm for embryos to 500 μm for adults, and exhibits "whole-body regeneration" capability, where entire body parts regenerate when removed from the body.<ref>{{Cite journal|last1=Srivastava|first1=Mansi|last2=Mazza-Curll|first2=Kathleen L.|last3=van Wolfswinkel|first3=Josien C.|last4=Reddien|first4=Peter W.|date=2014-05-19|title=Whole-Body Acoel Regeneration Is Controlled by Wnt and Bmp-Admp Signaling|journal=Current Biology|language=English|volume=24|issue=10|pages=1107–1113|doi=10.1016/j.cub.2014.03.042|issn=0960-9822|pmid=24768051|s2cid=7639757|doi-access=free}}</ref> They have a simple nervous system and a bowel sac with no way out.<ref>{{Cite journal|last1=Gehrke|first1=Andrew R.|last2=Neverett|first2=Emily|last3=Luo|first3=Yi-Jyun|last4=Brandt|first4=Alexander|last5=Ricci|first5=Lorenzo|last6=Hulett|first6=Ryan E.|last7=Gompers|first7=Annika|last8=Ruby|first8=J. Graham|last9=Rokhsar|first9=Daniel S.|last10=Reddien|first10=Peter W.|last11=Srivastava|first11=Mansi|date=2019-03-15|title=Acoel genome reveals the regulatory landscape of whole-body regeneration|journal=Science|language=en|volume=363|issue=6432|doi=10.1126/science.aau6173|issn=0036-8075|pmid=30872491|doi-access=free}}</ref> 

==Genera==
There are three genera in the family ''Hofsteniidae''.<ref name="WORMS"/>
*''[Hofstenia](/source/Hofstenia)'' <small>Bock, 1923</small>
*''[Hofsteniola](/source/Hofsteniola)'' <small>Papi, 1957</small>
*''[Marcusiola](/source/Marcusiola)'' <small>Steinböck, 1966</small>

==Species==
There are seven species in the family Hofsteniidae.<ref name="WORMS"/>

{| class="wikitable sortable" style="text-align:left;"
|-
!scope="col"| Name{{#tag:ref|A [binomial authority](/source/Binomial_nomenclature) in parentheses indicates that the species was originally described in a different genus.|group=lower-alpha}}
!scope="col"| Image
!scope="col"| Distribution
!scope="col"| Description
|-
|scope="row" align="left"|''[Hofstenia arabiensis](/source/Hofstenia_arabiensis)'' <small>Beltagi & Mandura, 1991</small>
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|scope="row" align="left"|''[Hofstenia atroviridis](/source/Hofstenia_atroviridis)'' <small>Bock, 1923</small>
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|scope="row" align="left"| ''[Hofstenia beltagii](/source/Hofstenia_beltagii)'' <small>Steinböck, 1966</small>
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|scope="row" align="left"|''[Hofstenia miamia](/source/Hofstenia_miamia)'' <small>Correa, 1960</small> ('three-banded panther worm')
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|scope="row" align="left"|''[Hofstenia minuta](/source/Hofstenia_minuta)'' <small>Palombi, 1928</small>
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|scope="row" align="left"| ''[Hofsteniola pardii](/source/Hofsteniola_pardii)'' <small>Papi 1957</small>
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|scope="row" align="left"|''[Marcusiola tinga](/source/Marcusiola_tinga)'' <small>(Marcus, 1957)</small>
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|-
|}

==Notes==
{{Notelist}}

==References==
{{Reflist}}

{{Taxonbar|from=Q3387292}}

Category:Acoela

{{Xenacoelomorpha-stub}}

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Adapted from the Wikipedia article [Hofsteniidae](https://en.wikipedia.org/wiki/Hofsteniidae) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Hofsteniidae?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.