title: Arachnoididae
text: # Arachnoididae
  
  Arachnoididae is a family of echinoderms of the order Clypeasteroida.
  
  ## Genera
  
  * Ammotrophus H. L. Clark, 1928
  * Arachnoides Leske, 1778
  * Fellaster Durham, 1955
  * Fossulaster Lambert & Thiery, 1925
  * Monostychia Laube, 1869
  * Philipaster Wang, 1994
  * Prowillungaster Wang, 1994
  * Scutellinoides Durham, 1955
  * Willungaster Philip & Foster, 1971
  