Sometimes taxonomists create new names for groups that already have a name. They may do this because they are unaware of the original name, or they may think the organism before them belongs to a different group when in fact it does not. If two or more names are found to apply to the same group, they are considered synonyms. In most cases, the first name takes priority and is considered to be the valid or accepted name. However, there can be exceptions, and it's not always easy to determine which of a series of synonyms should be considered valid or accepted. Here we list the synonyms provided to EOL by our classification partners. We also include other versions of the name that most likely refer to the same group, for example, misspellings in the literature or different variations of the authorship associated with the name.

Preferred marks the preferred name from each source. Import

Name Relationship
Calliostoma zizyphinum (Linné, 1758) Preferred
Calliostoma conuloide (Lamarck, 1822) Synonym
Calliostoma zizyphinum var. lyonsi (Leach in Forbes & Hanley, 1850)
Calliostoma zizyphinus (Linné, 1758)
Trochus conuloides Lamarck, 1822
Trochus zizyphinus Linnaeus, 1758

Species 2000 & ITIS Catalogue of Life: April 2013

Name Relationship
Calliostoma zizyphinum (Linnaeus, 1758) Preferred
Calliostoma zizyphinum lyonsi (Leach in Forbes & Hanley, 1850)

World Register of Marine Species (WoRMS)

Name Relationship
Calliostoma zizyphinum (Linnaeus, 1758) Preferred
Trochus zizyphinus Linnaeus, 1758
Trochus conuloides Lamarck, 1822
Calliostoma conuloides (Lamarck, 1822)
Calliostoma alexandrinum Pallary, 1912
Conulus typus Nardo, 1847
Trochus agrestis Philippi, 1843
Trochus albidus Wood W., 1828
Trochus chemnitzii Philippi, 1848
Trochus cranchi Leach, 1852
Trochus discrepans Brown, 1818
Trochus flavus Anton in Philippi, 1849
Trochus irregularis Leach, 1852
Trochus laevigatus Sowerby J., 1817
Trochus lineolatus Risso 1826
Trochus lyonsii Leach, 1852
Zizyphinus dalmaticus Monterosato, 1889
Zizyphinus demissus Monterosato, 1889
Zizyphinus linnaei Monterosato, 1884
Zizyphinus novegradensis Monterosato, 1889
Zizyphinus vulgaris Gray J.E., 1850
Calliostoma demissum (Monterosato, 1889)
Calliostoma zyziphinum [sic]


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