# Cylichna

Cylichna is a genus of sea snails or bubble snails, marine gastropod molluscs in the family Cylichnidae, the "chalice bubble snails".

## Species

Species within the genus Cylichna include:
* Cylichna aethiopica
* Cylichna affinis
* Cylichna alba (T. Brown, 1827) - white chalice-bubble
* Cylichna algoensis
* Cylichna andersoni
* Cylichna arthuri Dautzenberg, 1929
* Cylichna atahualpa (Dall, 1908)
* Cylichna ationsa
* Cylichna atlantica E. A. Smith, 1890
* Cylichna attanosa
* Cylichna attonsa Carpenter, 1865
* Cylichna auberii (d'Orbigny, 1841)
* Cylichna aula
* Cylichna biplicata (A. Adams in Sowerby, 1850)
* Cylichna brevissima
* Cylichna bruguierei
* Cylichna chevreuxi Dautzenberg, 1889
* Cylichna collyra Melvill, 1906
* Cylichna costata
* Cylichna crebripunctata (Jeffreys, 1881)
* Cylichna crispula
* Cylichna crossei Bucquoy, Dautzenberg & Dollfus, 1886
* Cylichna cumberlandiana (Strebel, 1908)
* Cylichna cylindracea (Pennant, 1777)
* Cylichna dalli A. E. Verrill, 1882
* Cylichna diegensis (Dall, 1919) - San Diego chalice-bubble
* Cylichna discus Watson, 1886
* Cylichna dulcis Thiele, 1925
* Cylichna eburnea A. E. Verrill, 1885 - ivory chalice-bubble
* Cylichna erecta Hedley, 1899 (taxon inquirendum)
* Cylichna euthlasta Melvill, 1918
* Cylichna fantasma (Baker and Hanna, 1927)
* Cylichna gelida (Smith, 1907)
* Cylichna georgiana (Strebel, 1908)
* Cylichna gouldii (Couthouy, 1839)
* Cylichna grovesi Valdès, 2008
* Cylichna inca (Dall, 1908)
* Cylichna intermissia curta
* Cylichna involuta
* Cylichna jaba
* Cylichna krebsii Mörch, 1875
* Cylichna lemchei Bouchet & Warén, 1979
* Cylichna linearis Jeffreys, 1867 - lined chalice-bubble
* Cylichna luticola (C. B. Adams, 1852)
* Cylichna magna Lemche, 1941
* Cylichna modesta
* Cylichna mongii (Audouin, 1826)
* Cylichna nida
* Cylichna nipponensis Nomura & Hatai, 1940
* Cylichna nucleola (Reeve, 1855) - kernel chalice-bubble
* Cylichna obscura Sykes, 1903
* Cylichna occulta (Mighels and C. B. Adams, 1842) - concealed chalice-bubble
* Cylichna occulta densistriata
* Cylichna orycta (Watson, 1883)
* Cylichna oryza
* Cylichna ovata Jeffreys, 1871
* Cylichna parallela
* Cylichna parvula Jeffreys, 1883
* Cylichna petiti Dautzenberg, 1923
* Cylichna piettei Dautzenberg & Fischer H., 1896
* Cylichna pizarro (Dall, 1908)
* Cylichna propecylindracea (de Gregorio, 1890)
* Cylichna protracta
* Cylichna proxima
* Cylichna pumila
* Cylichna pusilla
* Cylichna quercinensis
* Cylichna remissa E. A. Smith, 1890
* Cylichna secalina
* Cylichna similis
* Cylichna stephensae Strong & Hertlein, 1939
* Cylichna striata
* Cylichna subcylindrica
* Cylichna sundaica
* Cylichna tanyumphalos Valdès, 2008
* Cylichna tenuissima
* Cylichna thetidis Hedley, 1903
* Cylichna tubulosa Gould, 1859
* Cylichna umbilicata
* Cylichna veleronis Strong & Hertlein, 1939
* Cylichna verrillii Dall, 1889
* Cylichna vortex (Dall, 1881)
* Cylichna zealandica T.W. Kirk, 1880

### Species brought into synonymy

* Cylichna arachis (Quoy & Gaimard, 1833): synonym of Adamnestia arachis (Quoy & Gaimard, 1833)
* Cylichna atkinsoni Tenison-Woods, 1876: synonym of Retusa atkinsoni (Tenison-Woods, 1876)
* Cylichna atyoides Thiele, 1925: synonym of Sphaerocylichna atyoides (Thiele, 1925)
* Cylichna bizona (A. Adams, 1850): synonym of Mnestia bizona (A. Adams, 1850)
* Cylichna bulloides Dell, 1956: synonym of Sphaerocylichna incommoda (E. A. Smith, 1891)
* Cylichna consobrina Gould, 1859: synonym of Cylichna alba (Brown, 1827)
* Cylichna cylindrica (Bruguière, 1792): synonym of Cylichna cylindracea (Pennant, 1777)
* Cylichna densistriata Leche, 1878: synonym of Cylichnoides densistriata (Leche, 1878)
* Cylichna elongata Locard, 1886: synonym of Cylichna cylindracea (Pennant, 1777)
* Cylichna girardi (Audouin, 1826): synonym of Cylichnina girardi (Audouin, 1826); synonym of Retusa girardi (Audouin, 1826)
* Cylichna grimaldii Dautzenberg: synonym of Cylichnatys grimaldii (Dautzenberg, 1891)
* Cylichna hoernesii: synonym of Pyrunculus hoernesii (Weinkauff, 1866)
* Cylichna incisula Yokoyama, 1928: synonym of Liloa porcellana (Gould, 1859)
* Cylichna laevisculpta Granata-Grillo, 1877: synonym of Cylichnina laevisculpta (Granata-Grillo, 1877); synonym of Retusa laevisculpta (Granata-Grillo, 1877)
* Cylichna mongei (Audouin, 1826): synonym of Cylichna mongii (Audouin, 1826)
* Cylichna nitidula Lovén, 1846: synonym of Cylichnina nitidula (Lovén, 1846); synonym of Retusa nitidula (Lovén, 1846)
* Cylichna nucleolus (Reeve, 1855): synonym of Cylichna nucleola (Reeve, 1855)
* Cylichna occulata: synonym of Cylichna occulta (Mighels & Adams, 1842)
* Cylichna producta (Brown, 1827): synonym of Cylichna cylindracea (Pennant, 1777)
* Cylichna propinqua M. Sars, 1858: synonym of Cylichna occulta (Mighels & Adams, 1842)
* Cylichna protumida Hedley, 1903: synonym of Retusa protumida (Hedley, 1903)
* Cylichna scalpta Reeve, 1855: synonym of Cylichna occulta (Mighels & Adams, 1842)
* Cylichna semisulcata Dunker, 1882: synonym of Liloa porcellana (Gould, 1859)
* Cylichna spreta Watson, 1897: synonym of Pyrunculus spretus (Watson, 1897)
* Cylichna strigella (A. Adams, 1850): synonym of Cylichna arthuri Dautzenberg, 1929
* Cylichna sumatrana Thiele, 1925: synonym of Relichna sumatrana (Thiele, 1925)
* Cylichna tayamaensis Habe, 1955: synonym of Cylichna alba (Brown, 1827)
* Cylichna venustula A. Adams, 1862: synonym of Relichna venustula (A. Adams, 1862)