Cassidula is a genus of small air-breathing salt marsh snails, pulmonate gastropod mollusks in the family Ellobiidae. Cassidula aurisfelis is known as Angulated Shoulder Earsnail, Angulate Vassidula or cat's Ear Cassidula in English (Smith, 1992). It belongs to the great division or phylum called the Mollusca and from class of Gastropoda.
Species and subspecies Cassidula angulifera (Petit, 1841) Cassidula aurisfelis (Bruguière, 1789) Cassidula crassiuscula Mousson, 1869 Cassidula doliolum (Petit de la Saussaye, 1842) Cassidula faba (L. Pfeiffer, 1853) Cassidula granosula (Iredale, 1936) Cassidula labio von Möllendorff, 1887 Cassidula labrella (Deshayes, 1830) Cassidula multiplicata (Martens, 1865) Cassidula nucleus (Gmelin, 1791) Cassidula paludosa (Garrett, 1872) Cassidula philippinarum Hidalgo, 1888 Cassidula plecotrematoides Möllendorff, 1901 Cassidula plecotrematoides japonica Möllendorff, 1901 Cassidula rugata (Menke, 1843) Cassidula schmackeriana Möllendorff, 1895 Cassidula sowerbyana (Pfeiffer, 1853) Cassidula sulculosa (Mousson, 1849) Cassidula vespertilionis (Lesson, 1831) Cassidula zonata H. Adams & A. Adams, 1855 Species brought into synonymy Cassidula bilabiata Hedley, 1912: synonym of Cassidula zonata H. Adams & A. Adams, 1855 Cassidula corona (Gmelin, 1791): synonym of Melongena corona (Gmelin, 1791) Cassidula decussata H. Adams & A. Adams, 1855: synonym of Cassidula sowerbyana (Pfeiffer, 1853) Cassidula kraussi (Küster, 1844): synonym of Cassidula labrella (Deshayes, 1830) (junior synonym) Cassidula lutescens Pfeiffer, 1856: synonym of Cassidula labrella (Deshayes, 1830) (junior synonym) Cassidula mustelina (Deshayes, 1830): synonym of Cassidula nucleus (Gmelin, 1791) (junior synonym)
References
Thiele, J. (1929-1935). Handbuch der systematischen Weichtierkunde. Jena, Gustav Fischer, 1154 pp. Vol. 1 part 1: 1-376 [between 4 September and 21 October 1929]; Vol. 1 part 2: 377-778 [before 31 October 1931]; Vol. 2 part 3: 779-1022 [before 19 January 1934]; Vol. 2 part 4: i-iv, 1023-1154, i-vi for volume 1
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