title: Cephalodiscus planitectus
text: # Cephalodiscus planitectus
  
  Cephalodiscus planitectus is a sessile hemichordate belonging to the order Cephalodiscida.
  
  ## Distribution
  
  It is found at a depth of 100–300 metres off the island of Jōgashima, Sagami Bay, Japan.
  
  ## Anatomy
  
  There are three pairs of arms with tentacles.
  
  ## Phylogenetics
  
  Cephalodiscus planitectus is the most divergent of all Cephalodiscus species, with Miyamoto, Nishikawa and Namikawa (2020) suggesting that it constitutes a sister group to all existing Cephalodiscus species.
  
  