Halocynthia is a genus of ascidian tunicates in the family Pyuridae. Species such as H. roretzi are eaten in parts of Asia as a delicacy.
Species within the genus Halocynthia include:
- Halocynthia aurantium <small>(Pallas, 1787)</small>
- Halocynthia breviramosa <small>Sluiter, 1904</small>
- Halocynthia cactus <small>(Oka, 1932)</small>
- Halocynthia dumosa <small>(Stimpson, 1855)</small>
- Halocynthia hilgendorfi <small>(Traustedt, 1885)</small>
- Halocynthia igaboja <small>Oka, 1906</small>
- Halocynthia igaguri <small>Tokioka, 1953</small>
- Halocynthia microspinosa <small>(Van Name, 1921)</small>
- Halocynthia okai <small>Ritter, 1907</small>
- Halocynthia papillosa <small>(Linnaeus, 1767)</small>
- Halocynthia pyriformis <small>(Rathke, 1806)</small>
- Halocynthia roretzi <small>(Drasche, 1884)</small>
- Halocynthia simaensis <small>Tokioka, 1949</small>
- Halocynthia spinosa <small>Sluiter, 1905</small>
- Halocynthia turboga <small>(Oka, 1929)</small>
Species names currently considered to be synonyms:
- Halocynthia arabica <small>Monniot, 1965</small>: synonym of Halocynthia spinosa <small>Sluiter, 1905</small>
- Halocynthia arctica <small>(Hartmeyer, 1899)</small>: synonym of Boltenia echinata <small>(Linnaeus, 1767)</small>
- Halocynthia carnleyensis <small>Bovien, 1921</small>: synonym of Pyura trita <small>(Sluiter, 1900)</small>
- Halocynthia castaneiformis <small>(Drasche, 1884)</small>: synonym of Boltenia villosa <small>(Stimpson, 1864)</small>
- Halocynthia cerebriformis <small>(Herdman, 1881)</small>: synonym of Pyura spinosa <small>(Quoy & Gaimard, 1834)</small>
- Halocynthia chilensis <small>(Molina, 1782)</small>: synonym of Pyura chilensis <small>Molina, 1782</small>
- Halocynthia comma <small>Hartmeyer, 1906</small>: synonym of Pyura comma <small>(Hartmeyer, 1906)</small>
- Halocynthia deani <small>(Ritter, 1900)</small>: synonym of Halocynthia aurantium <small>(Pallas, 1787)</small>
- Halocynthia defectiva <small>Millar, 1962</small>: synonym of Halocynthia spinosa <small>Sluiter, 1905</small>
- Halocynthia discoveryi <small>Herdman, 1910</small>: synonym of Pyura discoveryi <small>(Herdman, 1910)</small>
- Halocynthia echinata <small>(Linnaeus, 1767)</small>: synonym of Boltenia echinata <small>(Linnaeus, 1767)</small>
- Halocynthia gangelion <small>(Savigny, 1816)</small>: synonym of Pyura gangelion <small>(Savigny, 1816)</small>
- Halocynthia grandis <small>(Heller, 1878)</small>: synonym of Herdmania grandis <small>(Heller, 1878)</small>
- Halocynthia haustor <small>(Stimpson, 1864)</small>: synonym of Pyura haustor <small>(Stimpson, 1864)</small>
- Halocynthia hispida <small>(Herdman, 1881)</small>: synonym of Halocynthia dumosa <small>(Stimpson, 1855)</small>
- Halocynthia hystrix <small>Oka, 1930</small>: synonym of Pyura sacciformis <small>(Drasche, 1884)</small>
- Halocynthia jacatrensis <small>(Sluiter, 1890)</small>: synonym of Pyura arenosa <small>(Herdman, 1882)</small>
- Halocynthia jakoboja <small>Oka, 1906</small>: synonym of Halocynthia igaboja <small>Oka, 1906</small>
- Halocynthia johnsoni <small>Ritter, 1909</small>: synonym of Pyura haustor <small>(Stimpson, 1864)</small>
- Halocynthia jokoboja <small>Oka, 1906</small>: synonym of Pyura sacciformis <small>(Drasche, 1884)</small>
- Halocynthia karasboja <small>Oka, 1906</small>: synonym of Pyura vittata <small>(Stimpson, 1852)</small>
- Halocynthia michaelseni <small>Oka, 1906</small>: synonym of Pyura sacciformis <small>(Drasche, 1884)</small>
- Halocynthia mirabilis <small>(Drasche, 1884)</small>: synonym of Herdmania mirabilis <small>(Drasche, 1884)</small>
- Halocynthia momus <small>(Savigny, 1816)</small>: synonym of Herdmania momus <small>(Savigny, 1816)</small>
- Halocynthia owstoni <small>Oka, 1906</small>: synonym of Halocynthia igaboja <small>Oka, 1906</small>
- Halocynthia paessleri <small>(Michaelsen, 1900)</small>: synonym of Pyura paessleri <small>(Michaelsen, 1900)</small>
- Halocynthia pallida <small>(Heller, 1878)</small>: synonym of Herdmania pallida <small>(Heller, 1878)</small>
- Halocynthia partita <small>(Stimpson, 1852)</small>: synonym of Styela canopus <small>(Savigny, 1816)</small>
- Halocynthia polycarpa <small>Sluiter, 1904</small>: synonym of Pyura polycarpa <small>(Sluiter, 1904)</small>
- Halocynthia pulchella <small>(Verrill, 1871)</small>: synonym of Dendrodoa pulchella <small>(Rathke, 1806)</small>
- Halocynthia riiseana <small>(Traustedt, 1883)</small>: synonym of Pyura vittata <small>(Stimpson, 1852)</small>
- Halocynthia ritteri <small>(Oka, 1906)</small>: synonym of Halocynthia igaboja <small>Oka, 1906</small>
- Halocynthia rustica <small>(Linnaeus, 1767)</small>: synonym of Styela rustica <small>Linnaeus, 1767</small>
- Halocynthia sanderi <small>(Traustedt & Weltner, 1894)</small>: synonym of Pyura sacciformis <small>(Drasche, 1884)</small>
- Halocynthia setosa <small>Sluiter, 1905</small>: synonym of Pyura setosa <small>(Sluiter, 1905)</small>
- Halocynthia stubenrauchi <small>(Michaelsen, 1900)</small>: synonym of Pyura stubenrauchi <small>(Michaelsen, 1900)</small>
- Halocynthia superba <small>(Ritter, 1900)</small>: synonym of Halocynthia aurantium <small>(Pallas, 1787)</small>
- Halocynthia transversaria <small>Sluiter, 1904</small>: synonym of Boltenia transversaria <small>(Sluiter, 1904)</small>
- Halocynthia tuberculum <small>Verrill, 1879</small>: synonym of Styela coriacea <small>(Alder & Hancock, 1848)</small>
- Halocynthia vanhaffeni <small>Michaelsen, 1904</small>: synonym of Pyura stolonifera <small>(Heller, 1878)</small>
- Halocynthia vanhoeffeni <small>Michaelsen, 1904</small>: synonym of Pyura stolonifera <small>(Heller, 1878)</small>
- Halocynthia vanhoffeni <small>Michaelsen, 1904</small>: synonym of Pyura stolonifera <small>(Heller, 1878)</small>
- Halocynthia villosa <small>(Stimpson, 1864)</small>: synonym of Boltenia villosa <small>(Stimpson, 1864)</small>
- Halocynthia washingtonia <small>Ritter, 1913</small>: synonym of Pyura haustor <small>(Stimpson, 1864)</small>
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