Cantharidus is a genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of sea snail, a marine

Marine (ocean)

Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...

 gastropod molluscs of the family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Trochidae

Trochidae

The Trochidae, common name top snails, are a taxonomic family of very small to large sea snails, marine gastropod molluscs in the clade Vetigastropoda ....

, the top shells.

Species

The World Register of Marine Species

World Register of Marine Species

The World Register of Marine Species is a database that hopes to provide an authoritative and comprehensive list of names of marine organisms. The content of the registry is edited and maintained by scientific specialists on each group of organism. These taxonomists control the quality of the...

 (WoRMS) includes the following species with valid names within the genus Cantharidus :

• Cantharidus bisculptus E.A. Smith
• Cantharidus burchorum
  Cantharidus burchorum
  Cantharidus burchorum is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails....
  
  Marshall, 1998
• Cantharidus nolfi
  Cantharidus nolfi
  Cantharidus nolfi is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails....
  
  Poppe, Tagaro & Dekker, 2006
• Cantharidus sendersi
  Cantharidus sendersi
  Cantharidus sendersi is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails....
  
  Poppe, Tagaro & Dekker, 2006
• Cantharidus suarezensis
  Cantharidus suarezensis
  Cantharidus suarezensis is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails....
  
  P. Fisher in Kiener, 1880

The Indo-Pacific Molluscan Database also mentions the following species with names in current use :

• Cantharidus callichroa (Philippi, 1849)
• Cantharidus crenelliferus (Adams, 1853)
• Cantharidus fournieri (Crosse, 1863)
• Cantharidus giliberti Montrouzier, 1878
• Cantharidus hirasei Pilsbry
  Henry Augustus Pilsbry
  Henry Augustus Pilsbry was an American biologist, malacologist and carcinologist, among other areas of study. He was a dominant presence in many fields of invertebrate taxonomy for the better part of a century...
  
  , 1901
• Cantharidus infuscatus Gould, 1861
• Cantharidus japonicus (A. Adams, 1853)
• Cantharidus jessoensis Schrenck, L. von, 1863
• Cantharidus lepidus Philippi
  Rodolfo Amando Philippi
  Rodolfo Amando Philippi was a German-Chilean paleontologist and zoologist....
  
  , R.A., 1849
• Cantharidus marmoreus Pease, W.H., 1868
• Cantharidus pallidulus A. Adams, 1853
• Cantharidus pliciferus Schepman, 1908
• Cantharidus polychroma (A. Adams, 1853)
• Cantharidus pruinosus Gould
  Augustus Addison Gould
  Augustus Addison Gould was an American conchologist and malacologist.-Biography:...
  
  , 1844
• Cantharidus urbanus (Gould, 1861)
• Cantharidus vittata (Pilsbry, 1903)

Species and subspecies within the genus Cantharidus include:

• Cantharidus fumosus Dillwyn
  Lewis Weston Dillwyn
  Lewis Weston Dillwyn, FRS was a British porcelain manufacturer, naturalist and Member of Parliament.He was born in Walthamstow, Essex, the eldest son of William Dillwyn and Sarah Dillwyn...
  
  , 1817
• Cantharidus opalus (Martyn
  Thomas Martyn
  Thomas Martyn was an English botanist and Professor of Botany at Cambridge University. He is sometimes confused with the conchologist and entomologist of the same name....
  
  , 1784)
  • Cantharidus opalus cannoni
    Cantharidus opalus cannoni
    Cantharidus opalus cannoni is a subspecies of medium sized sea snail, a marine gastropod mollusc in the family Trochidae, the top snails.-References:...
    
    Powell
    Arthur William Baden Powell
    Dr Arthur William Baden Powell CBE was a New Zealand malacologist, naturalist and palaeontologist, a major influence in the study and classification of New Zealand molluscs through much of the twentieth century. He was known to his friends and family by his third name, "Baden".Powell was born at...
    
    , 1933
• Cantharidus purpureus
  Cantharidus purpureus
  Cantharidus purpureus is a species of medium-sized sea snail, a marine gastropod mollusc in the family Trochidae.- Further reading :* Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1...
  
  (Gmelin
  Johann Friedrich Gmelin
  Johann Friedrich Gmelin was a German naturalist, botanist, entomologist, herpetologist and malacologist.- Education :Johann Friedrich Gmelin was born as the eldest son of Philipp Friedrich Gmelin in 1748 in Tübingen...
  
  ,1791)
• Cantharidus capillaceus (Philippi
  Rodolfo Amando Philippi
  Rodolfo Amando Philippi was a German-Chilean paleontologist and zoologist....
  
  , 1848)
  • Cantharidus capillaceus coruscans
    Cantharidus capillaceus coruscans
    Cantharidus capillaceus coruscans is a subspecies of sea snail, a marine gastropod mollusc in the family Trochidae, the top snails.-References:...
    
    (Hedley
    Charles Hedley
    Charles Hedley was a naturalist, active in Australia and winner of the 1925 Clarke Medal.-Early life:...
    
    , 1916)