Semicassis is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails.[2]
Species
According to the World Register of Marine Species (WoRMS), the following species with valid names are included within the genus Semicassis:
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Semicassis adcocki (Sowerby III, 1896)
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Semicassis angasi (Iredale, 1927)
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Semicassis bisulcata (Schubert & Wagner, 1829)
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Semicassis bondarevi Mühlhäusser & Parth, 1993
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Semicassis bulla Habe, 1961
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Semicassis canaliculata (Bruguière, 1792)
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Semicassis cancellata (Lamarck, 1803)
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Semicassis centiquadrata (Valenciennes, 1832)
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Semicassis craticulata (Euthyme, 1885)
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Semicassis decipiens (Kilburn, 1980)
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Semicassis dorae (Kreipl & Mühlhäusser, 1996)
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Semicassis dougthorni Dekkers, 2013
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Semicassis faurotis (Jousseaume, 1888)
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Semicassis fernandesi (Kilburn, 1975)
- † Semicassis fibrata (P. Marshall & Murdoch, 1920)
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Semicassis glabrata (Dunker, 1852)
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Semicassis granulata (Born, 1778) - synonym: Phalium granulatum (Born, 1778)
- † Semicassis grateloupi (Deshayes, 1853)
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Semicassis inornata (Pilsbry, 1895)
- † Semicassis kaawaensis (Bartrum & Powell, 1928)
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Semicassis labiata (Perry, 1811)
- † Semicassis laevigata (Defrance, 1817)
- †Semicassis lilliei (C. A. Fleming, 1943)
- † Semicassis marwicki (C. A. Fleming, 1943)
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Semicassis microstoma (Martens, 1903)
- † Semicassis neumayri (Hoernes, 1875)
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Semicassis paucirugis (Menke, 1843)
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Semicassis pyrum (Lamarck, 1822)
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Semicassis royana (Iredale, 1914)
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Semicassis saburon (Bruguière, 1792)
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Semicassis semigranosa (Lamarck, 1822)
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Semicassis sinuosa (Verco, 1904)
- † Semicassis skinneri (Marwick, 1928)
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Semicassis sophia (Brazier, 1872)
- † Semicassis subsulcosa (Hoernes & Auinger, 1884)
- † Semicassis szilviae Kovács & Vicián, 2018
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Semicassis thachi Kreipl, Alf & Eggeling, 2006
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Semicassis thomsoni (Brazier, 1875)
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Semicassis umbilicata (Pease, 1861)
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Semicassis undulata (Gmelin, 1791)
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Semicassis westralis Kreipl, 1997
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Semicassis whitworthi (Abbott, 1968)
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Semicassis zeylanica (Lamarck, 1822)
- Species brought into synonymy
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Semicassis cicatricosa (Gmelin, 1791): synonym of Semicassis granulata (Born, 1778)
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Semicassis diuturna Iredale, 1927: synonym of Semicassis bisulcata (Schubert & J. A. Wagner, 1829)
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Semicassis japonica (Reeve, 1848): synonym of Semicassis bisulcata (Schubert & J. A. Wagner, 1829)
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Semicassis miolaevigata Sacco, 1890: synonym of Semicassis saburon (Bruguière, 1792)
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Semicassis obscura Habe, 1961: synonym of Semicassis bulla Habe, 1961
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Semicassis pauciruge: synonym of Semicassis paucirugis (Menke, 1843)
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Semicassis persimilis Kira, 1955: synonym of Semicassis bisulcata (Schubert & J. A. Wagner, 1829)
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Semicassis pila (Reeve, 1848): synonym of Semicassis bisulcata (Schubert & J. A. Wagner, 1829)
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Semicassis salmonea Beu, Bouchet & Tröndlé, 2012: synonym of Semicassis bulla Habe, 1961
Fossil shell of
Semicassis rondoletii
Extinct Species
Extinct species within this genus include:[3]
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Semicassis aldrichi Dall 1890 †
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Semicassis angasi Iredale 1927 †
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Semicassis deneseplicata Martin 1916 †
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Semicassis harpaeformis Lamarck 1803 †
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Semicassis labiata Perry 1811 †
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Semicassis monilifera Sowerby 1846 †
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Semicassis oligocalantica Vredenburg 1925 †
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Semicassis ovulum Ortmann 1900 †
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Semicassis pyshtensis Addicott 1976 †
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Semicassis reclusa Guppy 1873 †
Fossils of species within this genus have been found all over the world in sediments from Eocene to Quaternary (age range: 37.2 to 0.0 million years ago).
References
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^ Mörch, O.A.L. (1852) Catalogus Conchyliorum quae Reliquit D’Alphonso d’Aguirra & Gadea Comes de Yoldi, Regis Daniae Cubiculariorum Princeps, Ordinis Dannebrogici in Prima Classe & Ordinis Caroli Terth Eques. Vol. 1. L. Klein, Hafniae, 74 pp.
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^ a b WoRMS : Semicassis; accessed: 30 July 2020
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^ Fossilworks
Wikimedia Commons has media related to
Semicassis.
