Statistics

Number of records in Hydrozoa.
  • All taxa: number of scientific names at all ranks (sum of species, genera, families,..., accepted and synonyms).
  • All species: number of species (sum of accepted and synonyms) within the specific rank.
  • Acc. species: number of accepted species within the specific rank.
  • Acc. species: number of accepted non-marine [nM] & non-fossil [nF] species within the specific rank.
  • Checked taxa: number of scientific names (%) that have been checked by a Taxonomic Editor.


  all taxa    all species    acc. species    acc. species
[nM, nF]
   checked taxa
  Subclass Hydroidolina 8 5487 138 3 5325 8 548 (100 %)
  Subclass Trachylinae 608422 1596 608 (100 %)

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Discovery rate



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Discovery statistics

Authors describing most species during last decade



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Discovery statistics

Citations (Google scholar)

Citations for "World Hydrozoa Database":

93


[view publications]