# Bittium

Bittium is a genus of very small sea snails, marine gastropod molluscs in the family Cerithiidae, the horn snails.

## Distribution

This genus is found worldwide.

## Species

Species in the genus Bittium include:
* Bittium aedonium (Watson, 1880)
* Bittium afrum
* Bittium amboynense (Watson, 1881)
* Bittium anembatum (Melvill, 1904)
* Bittium aquaticum
* Bittium arenaense Hertlein & Strong, 1951
* Bittium armillatum (Carpenter, 1864)
* Bittium arnoldi Bartsch, 1911
* Bittium atramentarium Melvill & Standen, 1901
* Bittium bandatum Bozzetti, 2019
* Bittium bartolomense Bartsch, 1917
* Bittium batillarium Kuroda & Habe, 1971
* Bittium casmaliense Bartsch, 1911
* Bittium cerithium
* Bittium cerralvoense Bartsch, 1911
* Bittium challisae Bartsch, 1917
* Bittium chrysomallum Melvill, 1901
* Bittium circa Moreno, 2006
* Bittium clathratalum
* † Bittium courtillerianum (Millet, 1865)
* † Bittium crassicostatum (Etheridge & Bell, 1898)
* † Bittium crassum Landau, Ceulemans & Van Dingenen, 2018
* Bittium decussatum (Carpenter, 1857)
* Bittium delicatum (Watson, 1880)
* Bittium depauperatum (Watson, 1880)
* Bittium diminutivum (Philippi, 1845)
* Bittium dumblei
* Bittium editum (Powell, 1930)
* Bittium elegantissimum (Hedley, 1899)
* † Bittium eniwetokense Ladd, 1972
* Bittium exiguum
* Bittium fastigiatum Carpenter, 1864
* Bittium filosum
* Bittium fretense
* † Bittium gallicum Landau, Ceulemans & Van Dingenen, 2018
* Bittium giganteum Bartsch, 1911
* Bittium glareosum Gould, 1861
* † Bittium gliberti Van Dingenen, Ceulemans & Landau, 2016
* Bittium hartbergense
* Bittium hawaiiensis
* Bittium impendens (Hedley, 1899)
* Bittium incile Watson, 1897
* Bittium inornatum Bartsch, 1911
* Bittium insulsum Preston, 1908
* Bittium koeneni
* Bittium lacteum (Philippi, 1836)
* Bittium laevicordatum (Powell, 1937)
* † Bittium larrieyense Vignal, 1911
* Bittium latreillii (Payraudeau, 1826)
* † Bittium lozoueti Van Dingenen, Ceulemans & Landau, 2016
* Bittium lusciniae (Watson, 1880)
* Bittium mexicanum Bartsch, 1911
* Bittium midwayense Kosuge, 1979
* Bittium multiliratum
* Bittium nanum (Mayer, 1864)
* Bittium nicholsi Bartsch, 1911
* Bittium nitens Carpenter, 1864
* Bittium ornatissimum Bartsch, 1911
* Bittium paleonotum
* Bittium paludosum
* Bittium panamense Bartsch, 1911
* Bittium peruvianum (d'Orbigny, 1841)
* Bittium philomelae (Watson, 1880)
* Bittium pigrum (Watson, 1880)
* † Bittium pingue Landau, Ceulemans & Van Dingenen, 2018
* Bittium porcellanum Watson, 1886
* Bittium proteum (Jousseaume, 1930)
* Bittium pupiforme (Watson, 1880)
* Bittium quadricinctum E. A. Smith, 1903
* † Bittium renauleauense Landau, Ceulemans & Van Dingenen, 2018
* Bittium reticulatum (da Costa, 1778) –
* Bittium rubanocinctum
* Bittium russiensis
* Bittium salinae
* Bittium sanjuanense Bartsch, 1917
* Bittium santamariense Bartsch, 1917
* Bittium scalatum
* Bittium semigranosum
* Bittium semigranulosum''
* Bittium serra Bartsch, 1917
* Bittium simplex (Jeffreys, 1867)
* Bittium spina
* Bittium stigmosum
* Bittium submamillatum (Jeffreys, 1867)
* † Bittium sublima (d'Orbigny, 1852)
* Bittium tenuispina
* Bittium terebelloides
* † Bittium transenna (Bayan, 1873)
* Bittium tumidum Bartsch, 1907
* Bittium turritella
* Bittium vancouverense Dall & Bartsch, 1910
* † Bittium venustulum (Millet, 1865)
* † Bittium vignali Dollfus, 1909
* Bittium watsoni (Jeffreys, 1885)
* Bittium xanthum Watson, 1886

### Species brought into synonymy

* Bittium adamsi Dall, 1889: synonym of Finella adamsi (Dall, 1889)
* Bittium alternatum (Say, 1822) and Bittium nigrum (Totten, 1834) are synonyms of Bittiolum alternatum (Say, 1822)
* Bittium asperum Gabb, 1861: synonym of Lirobittium asperum (Gabb, 1861)
* Bittium attenuatum Carpenter, 1864 – slender cerith: synonym of Lirobittium attenuatum (Carpenter, 1864)
* Bittium boeticum (Pease, 1860) and Bittium pusillum (Gould, 1851) are synonyms of Cerithium boeticum Pease, 1860
* Bittium catalinense Bartsch, 1907: synonym of Lirobittium purpureum (Carpenter, 1864)
* Bittium cinctum Hutton, 1885: synonym of Seila cincta (Hutton, 1886)
* † Bittium cossmanni: synonym of † Hemicerithium cossmanni (Dall, 1892)
* Bittium diplax Watson, 1886 is a synonym of Cerithidium diplax (Watson, 1886)
* Bittium eschrichti (Middendorff, 1849): synonym of Neostylidium eschrichtii (Middendorff, 1849)
* Bittium estuarinumTate, 1893: synonym of Zeacumantus plumbeus (G. B. Sowerby II, 1855)
* Bittium exile (Hutton, 1873): synonym of Zebittium exile (Hutton, 1873)
* Bittium fetellum Bartsch, 1911: synonym of Lirobittium fetellum (Bartsch, 1911) (original combination)
* Bittium furvum Watson, 1886 : synonym of Cacozeliana furva (Watson, 1886)
* Bittium fuscocapitulum Hedley & Petterd, 1906 : synonym of Cacozeliana fuscocapitulum (Hedley & Petterd, 1906)
* Bittium granarium (Kiener, 1842) is a synonym of Cacozeliana granarium (Kiener, 1842)
* Bittium hiloense: synonym of Bittinella hiloensis (Pilsbry & Vanatta, 1908)
* Bittium houbricki Ponder, 1993 : synonym of Ittibittium houbricki (Ponder, 1993)
* Bittium icarus (Bayle, 1880) : synonym of Cacozeliana icarus (Bayle, 1880)
* Bittium interfossa (Carpenter, 1864): synonym of Lirobittium interfossa (Carpenter, 1864)
* Bittium jadertinum Brusina, 1865: synonym of Bittium reticulatum (da Costa, 1778)
* Bittium johnstonae Bartsch, 1911: synonym of Lirobittium johnstonae (Bartsch, 1911) (original combination)
* Bittium larum Bartsch, 1911: synonym of Lirobittium larum (Bartsch, 1911) (original combination)
* Bittium lawleyanum Crosse, 1863: synonym of Zeacumantus plumbeus (G. B. Sowerby II, 1855)
* Bittium leucocephalum Watson, 1886 : synonym of Argyropeza leucocephala (Watson, 1886)
* Bittium minutulum: synonym of Batillariella minutula (Thiele, 1930) (original combination)
* Bittium munitum (Carpenter, 1864): synonym of Lirobittium munitum (Carpenter, 1864)
* Bittium oldroydae Bartsch, 1911: synonym of Lirobittium oldroydae (Bartsch, 1911) (original combination)
* Bittium oryza (Mörch, 1876) : synonym of Ittibittium oryza (Mörch, 1876)
* Bittium paganicum (Dall, 1919): synonym of Lirobittium paganicum (Dall, 1919)
* Bittium parcum Gould, 1861 is a synonym of Ittibittium parcum (Gould, 1861)
* Bittium perparvulum Watson, 1886 is a synonym of Cerithidium perparvulum (Watson, 1886)
* Bittium perpusillum Tryon, 1887 : synonym of Cerithium alutaceum (Gould, 1861)
* Bittium plumbeum: synonym of Zeacumantus plumbeus (G. B. Sowerby II, 1855)
* Bittium quadrifilatum Carpenter, 1864 – four-thread cerith: synonym of Lirobittium quadrifilatum (Carpenter, 1864) (original combination)
* Bittium scabrum (Olivi, 1792) : synonym of Bittium reticulatum (da Costa, 1778)
* Bittium seymourianum Strebel, 1908: synonym of Cerithiella seymouriana (Strebel, 1908) (original combination)
* Bittium subplanatum Bartsch, 1911: synonym of Lirobittium rugatum (Carpenter, 1864)
* Bittium torresiense Melvill & Standen, 1899 : synonym of Bittium elegantissimum (Hedley, 1899)
* Bittium variegatum Henn & Brazier, 1894 : synonym of Cacozeliana variegatum (Henn & Brazier, 1894)
* Bittium varium (Pfeiffer, 1840) – grass cerith is a synonym of Bittiolum varium (Pfeiffer, 1840)
* Bittium zebrum (Kiener, 1841) is a synonym of Cerithium zebrum Kiener, 1841

### Nomen dubium

* Bittium alabastrulum (Mörch, 1876)
* Bittium caraboboense (Weisbord, 1962)
* Bittium galactis Mörch, 1876
* Bittium lima (Bruguière, 1792)