Cassis (gastropod)

Cassis, common name the helmet shells, is a genus of very large sea snails, marine gastropod mollusks in the family Cassidae, the helmet shells and their allies.[1] This is the type genus of the subfamily Cassinae.

For unrelated species named cassis, see Cassis (disambiguation) § Animals.

Cassis
Temporal range: Paleocene - Recent
A shell of Cassis cornuta
Five views of a shell of Cassis cornuta
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Superfamily: Tonnoidea
Family: Cassidae
Genus: Cassis
Scopoli, 1777
Type species
Buccinum cornutum
Species

See text

Synonyms[1]
  • Cassidea Bruguière, 1789
  • Cassis (Cassis) Scopoli, 1777· accepted, alternate representation
  • Cassis (Hypocassis) Iredale, 1927· accepted, alternate representation
  • Cassis (Morionella) Dall, 1909 †· accepted, alternate representation
  • Goniogalea Mörch, 1857
  • Hypocassis Iredale, 1927
  • Nannocassis Iredale, 1927

Species

The genus Cassis includes extant and extinct species:[1][2]

  • Cassis abbotti Bouchet, 1988
  • † Cassis altispira Beu 2010
  • † Cassis birmanica Vredenburg 1921
  • † Cassis brasili (Cossmann & Pissarro, 1905)
  • † Cassis calusa Petuch and Berschauer 2018
  • Cassis cornuta (Linnaeus, 1758)
  • † Cassis costulifera Beu 2010
  • † Cassis delta Parker 1948
  • † Cassis depressior Martin 1879
  • Cassis fimbriata Quoy & Gaimard, 1833
  • Cassis flammea (Linnaeus, 1758)
  • † Cassis flintensis Mansfield 1940
  • † Cassis floridensis Tucker and Wilson 1932
  • † Cassis glaucoides Martin 1879
  • † Cassis herklotsi Martin 1879
  • † Cassis ketteri Parodiz and Tripp 1992
  • Cassis kreipli Morrison, 2003
  • † Cassis lelongi Gain, Belliard & Le Renard, 2017
  • † Cassis maccormacki Olsson 1928
  • Cassis madagascariensis Lamarck, 1822
  • † Cassis mammillaris Grateloup 1927
  • Cassis nana Tenison-Woods, 1879
  • † Cassis nigellensis Gain, Belliard & Le Renard, 2017
  • Cassis norai Prati Musetti, 1995
  • Cassis nummulitiphila Sacco 1890
  • † Cassis parfouruorum Gain, Belliard & Le Renard, 2017
  • Cassis patamakanthini Parth, 2000
  • † Cassis powelli Petuch and Berschauer, 2018
  • Cassis retusa Michelotti 1861
  • Cassis subtuberosa Hanna 1926
  • Cassis sulcifera Sowerby 1850
  • Cassis tessellata Gmelin, 1791
  • Cassis togata White 1887
  • Cassis tuberosa (Linnaeus, 1758)
  • Cassis vialensis Fuchs 1870

Fossils of the sea snails within this genus have been found all over the world in sediments from Paleocene to Recent (age range: 66 to 0 million years ago).[2]

Fossil shell of Cassis mammillaris
Species brought into synonymy
[1]
  • Cassis achatina Lamarck, 1816: synonym of Semicassis labiata (Perry, 1811)
  • Cassis areola (Linnaeus, 1758): synonym of Phalium areola (Linnaeus, 1758)
  • Cassis bituberculosa Martens, 1901: synonym of Echinophoria bituberculosa (Martens, 1901)
  • Cassis callosa Röding, 1798: synonym of Nassarius gibbulosus (Linnaeus, 1758)
  • Cassis centiquadrata (Valenciennes, 1832): synonym of Semicassis centiquadrata (Valenciennes, 1832)
  • Cassis cernica Sowerby III, 1888: synonym of Casmaria ponderosa ponderosa (Link, 1807)
  • Cassis coarctata G.B. Sowerby I, 1825: synonym of Cypraecassis coarctata (G.B. Sowerby I, 1825)
  • Cassis coronadoi Crosse, 1867: synonym of Echinophoria coronadoi (Crosse, 1867)
  • Cassis dalli Anderson, 1929: synonym of Echinophoria hadra (Woodring & Olsson, 1957)
  • Cassis glans Röding, 1798: synonym of Demoulia abbreviata (Gmelin, 1791)
  • Cassis glauca (Linnaeus, 1758): synonym of Phalium glaucum (Linnaeus, 1758)
  • Cassis globulus Menke, 1829: synonym of Demoulia ventricosa (Lamarck, 1816)
  • Cassis gracilenta Yokoyama, 1928: synonym of Cyllene gracilenta (Yokoyama, 1928)
  • Cassis japonica Reeve, 1848: synonym of Semicassis bisulcata (Schubert & Wagner, 1829)
  • Cassis labrosa Martini, 1773: synonym of Malea pomum (Linnaeus, 1758)
  • Cassis ringens Swainson, 1822: synonym of Malea ringens (Swainson, 1822)
  • Cassis rufa (Linnaeus, 1758): synonym of Cypraecassis rufa (Linnaeus, 1758)
  • Cassis spinosa (Gronovius, 1781): synonym of Cassis tessellata Gmelin, 1791
  • Cassis tenuis Wood, 1828: synonym of Cypraecassis tenuis (Wood, 1828)
  • Cassis vibex (Linnaeus, 1758): synonym of Casmaria erinaceus (Linnaeus, 1758)
  • Cassis wyvillei Watson, 1886: synonym of Echinophoria wyvillei (Watson, 1886)

References
  1. Bouchet, P. (2014). "Cassis Scopoli, 1771". WoRMS. World Register of Marine Species. Retrieved 24 July 2014.
  2. Fossilworks


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