# Sycon

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{{short description|Genus of calcareous sponges in the family Sycettidae}}
{{Automatic taxobox
| image = Sycon_raphanus_Schmidt,_1862_et_Diplosoma_listerianum_(Milne-Edwards,_1841).jpg
| image_caption = ''[Sycon raphanus](/source/Sycon_raphanus)''
| taxon = Sycon
| authority = [Risso](/source/Antoine_Risso), 1826
| subdivision_ranks = Species
| subdivision = See text
| synonyms = {{hidden begin|title = List}} 
* ''Dunstervillia'' <small>Bowerbank, 1845</small> 
* ''Homoderma'' <small>Lendenfeld, 1885</small> 
* ''Leuckartea'' <small>Haeckel, 1872</small> 
* ''Scypha'' <small>Gray, 1821</small> 
* ''Streptoconus'' <small>Jenkin, 1908</small> 
* ''Sycarium'' <small>Haeckel, 1869</small> 
* ''Sycocystis'' <small>Haeckel, 1870</small> 
* ''Sycodendron'' <small>Haeckel, 1870</small> 
* ''Sycodendrum'' <small>Haeckel, 1869</small> 
* ''Syconella'' <small>Schmidt, 1868</small> 
* ''Sycortis'' <small>Haeckel, 1872</small> 
* ''Sycum'' <small>Agassiz, 1846</small> 
* ''Tenthrenodes'' <small>Jenkin, 1908</small>
{{hidden end}}
}}

'''''Sycon''''' is a [genus](/source/genus) of [calcareous sponges](/source/calcareous_sponges) belonging to the family [Sycettidae](/source/Sycettidae). These sponges are small, growing up to 7.5&nbsp;cm with a length from 2.5 to 7.5&nbsp;cm, and are tube-shaped and often white to cream in colour. They are known to aquarium hobbyists as "Pineapple" or "Q-Tip" sponges, and are frequent "hitchhikers" accidentally brought in.

==Species==
The following species are recognised in the genus ''Sycon'':<ref>{{cite web |url=http://www.marinespecies.org/aphia.php?p=taxlist |title=WoRMS - World Register of Marine Species |website=www.marinespecies.org |access-date=20 March 2018}}</ref>
*''[Sycon abyssale](/source/Sycon_abyssale)'' <small>Borojevic & raat-Kleeton, 1965</small>
*''[Sycon acanthoxea](/source/Sycon_acanthoxea)'' <small>(Little, 1963)</small>
*''[Sycon album](/source/Sycon_album)'' <small>Tanita, 1942</small>
*''[Sycon ampulla](/source/Sycon_ampulla)'' <small>(Haeckel, 1870)</small>
*''[Sycon antarcticum](/source/Sycon_antarcticum)'' <small>(Jenkin, 1908)</small>
*''[Sycon arcticum](/source/Sycon_arcticum)'' <small>(Haeckel, 1870)</small>
*''[Sycon australe](/source/Sycon_australe)'' <small>(Jenkin, 1908)</small>
*''[Sycon avus](/source/Sycon_avus)'' <small>Chagas & Cavalcanti, 2017</small>
*''[Sycon barbadense](/source/Sycon_barbadense)'' <small>(Schuffner, 1877)</small>
*''[Sycon bellum](/source/Sycon_bellum)'' <small>Chagas & Cavalcanti, 2017</small>
*''[Sycon boreale](/source/Sycon_boreale)'' <small>(Schuffner, 1877)</small>
*''[Sycon brasiliense](/source/Sycon_brasiliense)'' <small>Borojevic, 1971</small>
*''[Sycon calcaravis](/source/Sycon_calcaravis)'' <small>Hozawa, 1929</small>
*''[Sycon caminatum](/source/Sycon_caminatum)'' <small>Thacker, 1908</small>
*''[Sycon capricorn](/source/Sycon_capricorn)'' <small>Wörheide & Hooper, 2003</small>
*''[Sycon carteri](/source/Sycon_carteri)'' <small>Dendy, 1893</small>
*''[Sycon ciliatum](/source/Sycon_ciliatum)'' <small>(Fabricius, 1780)</small>
*''[Sycon coactum](/source/Sycon_coactum)'' <small>(Urban, 1906)</small>
*''[Sycon compactum](/source/Sycon_compactum)'' <small>Lambe, 1893</small>
*''[Sycon conulosum](/source/Sycon_conulosum)'' <small>Cóndor-Luján, Louzada, Hajdu & Klautau, 2018</small>
*''[Sycon cylindricum](/source/Sycon_cylindricum)'' <small>Tanita, 1942</small>
*''[Sycon defendens](/source/Sycon_defendens)'' <small>Borojevic, 1967</small>
*''[Sycon digitiforme](/source/Sycon_digitiforme)'' <small>Hozawa, 1929</small>
*''[Sycon dunstervillia](/source/Sycon_dunstervillia)'' <small>(Haeckel, 1872)</small>
*''[Sycon eglintonense](/source/Sycon_eglintonense)'' <small>Lambe, 1900</small>
*''[Sycon elegans](/source/Sycon_elegans)'' <small>(Bowerbank, 1845)</small>
*''[Sycon ensiferum](/source/Sycon_ensiferum)'' <small>Dendy, 1893</small>
*''[Sycon escanabense](/source/Sycon_escanabense)'' <small>Duplessis & Reiswig, 2000</small>
*''[Sycon faulkneri](/source/Sycon_faulkneri)'' <small>Ilan, Gugel, Galil & Janussen, 2003</small>
*''[Sycon formosum](/source/Sycon_formosum)'' <small>(Haeckel, 1870)</small>
*''[Sycon frustulosum](/source/Sycon_frustulosum)'' <small>Borojevic & Peixinho, 1976</small>
*''[Sycon gelatinosum](/source/Sycon_gelatinosum)'' <small>(Blainville, 1834)</small>
*''[Sycon giganteum](/source/Sycon_giganteum)'' <small>Dendy, 1893</small>
*''[Sycon globulatum](/source/Sycon_globulatum)'' <small>Hozawa, 1929</small>
*''[Sycon grantioides](/source/Sycon_grantioides)'' <small>Dendy, 1916</small>
*''[Sycon helleri](/source/Sycon_helleri)'' <small>(Lendenfeld, 1891)</small>
*''[Sycon hozawai](/source/Sycon_hozawai)'' <small>Breitfuss, 1932</small>
*''[Sycon huinayense](/source/Sycon_huinayense)'' <small>Azevedo, Hajdu, Willenz & Klautau, 2009</small>
*''[Sycon humboldti](/source/Sycon_humboldti)'' <small>[Risso](/source/Antoine_Risso), 1826</small> type species
*''[Sycon inconspicuum](/source/Sycon_inconspicuum)'' <small>(Lendenfeld, 1885)</small>
*''[Sycon incrustans](/source/Sycon_incrustans)'' <small>Breitfuss, 1898</small>
*''[Sycon karajakense](/source/Sycon_karajakense)'' <small>Breitfuss, 1897</small>
*''[Sycon kerguelense](/source/Sycon_kerguelense)'' <small>Urban, 1908</small>
*''[Sycon lambei](/source/Sycon_lambei)'' <small>Dendy & Row, 1913</small>
*''[Sycon lendenfeldi](/source/Sycon_lendenfeldi)'' <small>Row & Hozawa, 1932</small>
*''[Sycon lingua](/source/Sycon_lingua)'' <small>(Haeckel, 1870)</small>
*''[Sycon lunulatum](/source/Sycon_lunulatum)'' <small>(Haeckel, 1872)</small>
*''[Sycon luteolum](/source/Sycon_luteolum)'' <small>Tanita, 1942</small>
*''[Sycon magnapicale](/source/Sycon_magnapicale)'' <small>Cóndor-Luján, Louzada, Hajdu & Klautau, 2018</small>
*''[Sycon matsushimense](/source/Sycon_matsushimense)'' <small>Tanita, 1940</small>
*''[Sycon mexico](/source/Sycon_mexico)'' <small>Hozawa, 1940</small>
*''[Sycon minutum](/source/Sycon_minutum)'' <small>Dendy, 1893</small>
*''[Sycon misakiense](/source/Sycon_misakiense)'' <small>Hozawa, 1929</small>
*''[Sycon mundulum](/source/Sycon_mundulum)'' <small>Lambe, 1900</small>
*''[Sycon munitum](/source/Sycon_munitum)'' <small>Jenkin, 1908</small>
*''[Sycon natalense](/source/Sycon_natalense)'' <small>Borojevic, 1967</small>
*''[Sycon okadai](/source/Sycon_okadai)'' <small>Hozawa, 1929</small>
*''[Sycon ornatum](/source/Sycon_ornatum)'' <small>Kirk, 1898</small>
*''[Sycon oscari](/source/Sycon_oscari)'' <small>Van Soest & De Voogd, 2018</small>
*''[Sycon parvulum](/source/Sycon_parvulum)'' <small>(Preiwisch, 1904)</small>
*''[Sycon pedicellatum](/source/Sycon_pedicellatum)'' <small>Kirk, 1911</small>
*''[Sycon pentactinalis](/source/Sycon_pentactinalis)'' <small>Rossi, Farina, Borojevic & Klautau, 2006</small>
*''[Sycon plumosum](/source/Sycon_plumosum)'' <small>Tanita, 1943</small>
*''[Sycon proboscideum](/source/Sycon_proboscideum)'' <small>Breitfuss, 1898</small>
*''[Sycon proboscideum](/source/Sycon_proboscideum)'' <small>(Haeckel, 1870)</small>
*''[Sycon protectum](/source/Sycon_protectum)'' <small>Lambe, 1896</small>
*''[Sycon pulchrum](/source/Sycon_pulchrum)'' <small>Tanita, 1943</small>
*''[Sycon quadrangulatum](/source/Sycon_quadrangulatum)'' <small>(Schmidt, 1868)</small>
*''[Sycon ramsayi](/source/Sycon_ramsayi)'' <small>(Lendenfeld, 1885)</small>
*''[Sycon raphanus](/source/Sycon_raphanus)'' <small>Schmidt, 1862</small>
*''[Sycon rotundum](/source/Sycon_rotundum)'' <small>Tanita, 194</small>1
*''[Sycon satsumense](/source/Sycon_satsumense)'' <small>Hozawa, 1929</small>
*''[Sycon scaldiense](/source/Sycon_scaldiense)'' <small>(Van Koolwijk, 1982)</small>
*''[Sycon schmidti](/source/Sycon_schmidti)'' <small>(Haeckel, 1872)</small>
*''[Sycon schuffneri](/source/Sycon_schuffneri)'' <small>Dendy & Row, 1913</small>
*''[Sycon setosum](/source/Sycon_setosum)'' <small>Schmidt, 1862</small>
*''[Sycon simushirense](/source/Sycon_simushirense)'' <small>Hozawa, 1918</small>
*''[Sycon stauriferum](/source/Sycon_stauriferum)'' <small>(Preiwisch, 1904)</small>
*''[Sycon subhispidum](/source/Sycon_subhispidum)'' <small>(Carter, 1886)</small>
*''[Sycon sycandra](/source/Sycon_sycandra)'' <small>(Lendenfeld, 1895)</small>
*''[Sycon tuba](/source/Sycon_tuba)'' <small>Lendenfeld, 1891</small>
*''[Sycon urugamii](/source/Sycon_urugamii)'' <small>Tanita, 1940</small>
*''[Sycon verum](/source/Sycon_verum)'' <small>Row & Hozawa, 1931</small>
*''[Sycon vigilans](/source/Sycon_vigilans)'' <small>Sarà & Gaino, 1971</small>
*''[Sycon villosum](/source/Sycon_villosum)'' <small>(Haeckel, 1870)</small>
*''[Sycon yatsui](/source/Sycon_yatsui)'' <small>Hozawa, 1929</small>

==References==
{{Reflist}}

{{Taxonbar|from=Q5234442}}

Category:Leucosolenida
Category:Sponge genera
Category:Taxa described in 1826

{{calcarea-stub}}

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