The Commission has ruled that the homonymy between CLAVIDAE McCrady, 1859 (Cnidaria, Hydrozoa) and CLAVINAE Casey, 1904 (Mollusca, Gastropoda) should not be removed. It had been proposed that the gastropod name should be emended to CLAVUSINAE by changing the stem of the type genus Clavus de Montfort, 1810 from CLAV- to CLAVUS-. However, the Commission rejected this proposal because DRILLIINAE Olsson, 1964, the next available synonym for the gastropod name, provided a satisfactory alternative that was already being widely used instead of CLAVINAE for this group of gastropods. No names are placed on Official Lists or Indexes. [details]

Taxonomic Remark: As the genus Clava is a member of the Hydractiniidae, Clavidae becomes a senior synonym of Hydractiniidae. A case will be made for the ICZN to conserve the usage of the well known Hydractiniidae. The taxon Clavidae in the old sense is nowadays Oceaniidae [details]