# Clithon

Clithon is a genus of freshwater snails or brackish snails that have an operculum, aquatic gastropod molluscs in the family Neritidae, the nerites.

## Distribution

Distribution of the genus Clithon includes the Comoro Islands (3 species), Madagascar (3 or more species) and the Mascarene Islands.

## Description

Some species, such as Clithon coronatum have spines on its shell.

## Species

Species in the genus Clithon include:
* Clithon angulosum (Récluz, 1843)
* Clithon aspersum (G. B. Sowerby II, 1849)
* † Clithon avellana (Récluz, 1842)
* Clithon barbei Symonds & Pacaud, 2010 †
* † Clithon bezieri (Dalimier, 1918)
* Clithon bicolor (Récluz, 1843)
* † Clithon bouryi (Cossmann, 1888)
* † Clithon bristowi (Wenz, 1929)
* Clithon castanea (Hombron & Jacquinot, 1848)
* Clithon celatum (Récluz, 1846)
* Clithon chlorostoma (G.B. Sowerby I, 1833)
* Clithon circumvolutum (Récluz, 1843)
* † Clithon coeuvrense Vrinat, 2019
* † Clithon concavum (J. Sowerby, 1823)
* Clithon corona (Linnaeus, 1758)
* Clithon coronatum (Leach, 1815)
* † Clithon cranmorense Symonds, 2006
* Clithon cryptum Eichhorst, 2016
* Clithon cuvieriana
* Clithon diadema (Récluz, 1841)
* Clithon dispar (Pease, 1868)
* Clithon dominguense (Lamarck, 1822)
* Clithon donovani (Récluz, 1843)
* Clithon dringii (Récluz, 1846)
* Clithon elegans (Deshayes, 1824) †
* Clithon eudeli (G. B. Sowerby III, 1917)
* Clithon faba G. B. Sowerby I, 1836
* Clithon flavovirens (von dem Busch, 1843)
* Clithon francoisi (Mabille, 1895)
* Clithon fuliginosum (von dem Busch, 1843)
* † Clithon hillae ' Symonds, 2015 †
* † Clithon inequidentatum (Récluz, 1850)
* Clithon leachii (Récluz, 1841)
* Clithon lentiginosum (Reeve, 1855)
* Clithon luctuosum (Récluz, 1841)
* Clithon madecassinum (Morelet, 1860)
* Clithon mertonianum (Récluz, 1843)
* Clithon michaudi (Récluz, 1841)
* † Clithon mortoni Symonds, 2015
* Clithon nigrispinis Lesson, 1831
* Clithon nouletianus (Gassies, 1863)
* Clithon nucleolus (Morelet, 1857)
* †Clithon nucleus (Deshayes, 1832)
* † Clithon occultatum Vrinat, 2019
* Clithon olivaceum (Récluz, 1843)
* Clithon oualaniense (Lesson, 1831)
* Clithon parvulum (Le Guillou, 1841)
* † Clithon passyanum (Deshayes, 1864)
* Clithon peguense (Blanford, 1867)
* † Clithon pisiforme (Férussac, 1823)
* † Clithon planulatum (F. E. Edwards in Lowry, 1866)
* † Clithon pococki Symonds, 2015
* Clithon pritchardi (Dohrn, 1861)
* Clithon pulchellum (Récluz, 1843)
* Clithon rarispina (Mousson, 1849)
* Clithon recluzianum (Le Guillou, 1841)
* Clithon reticulare (G. B. Sowerby I, 1836)
* Clithon retropictum (von Martens, 1879)
* Clithon rugatum (Récluz, 1842)
* Clithon ruginosum (Récluz, 1841)
* † Clithon saincenyense (Deshayes, 1864)
* † Clithon sobrinum (A. Férussac, 1823)
* Clithon souleyetanum (Récluz, 1842)
* Clithon sowerbianum (Récluz, 1843)
* Clithon spiniferum (Récluz, 1842)
* Clithon spinosum (G. B. Sowerby I, 1825) - synonyms: Clithon spinosus, Clithon spinosa
* Clithon squarrosum (Récluz, 1843)
* † Clithon stintoni Symonds, 2009
* Clithon subgranosum (G. B. Sowerby I, 1836)
* Clithon subpunctatum (Récluz, 1843)
* Clithon teres Eichhorst, 2016
* Clithon thermophilum (Martens, 1878)
* † Clithon tigrinum Vrinat, 2019 †
* † Clithon transbaicalicus Popova, 1981
* Clithon triseriale (G. B. Sowerby I, 1836) (taxon inquirendum)
* Clithon tritonense (Le Guillou, 1841) (taxon inquirendum)
* Clithon undatus Lesson, 1831
* Clithon wallacei (Dohrn, 1861)
* † Clithon waltoni (Symonds, 2002)
* † Clithon zonarium (Deshayes, 1832)

### Species brought into synonymy

* Clithon exclamationis (Mabille, 1895): synonym of Clithon bicolor (Récluz, 1843)
* Clithon glabratum (G.B. Sowerby II, 1849): synonym of Vitta glabrata (G. B. Sowerby II, 1849)
* Clithon longispina (Récluz, 1841): synonym of Clithon coronatum (Leach, 1815) (junior synonym)

## Ecology

It lives in rapid streams.