Calvetidae
  Corymboporidae
  Crisiidae
  Crisinidae
  Cytididae
  Diaperoeciidae
  Diastoporidae
  Frondiporidae
  Hastingsiidae
  Heteroporidae
  Horneridae
  Lichenoporidae
  Mecynoeciidae
  Oncousoeciidae
  Pseudidmoneidae
  Stigmatoechidae
  Terviidae
  Theononidae
  Tretocycloecidae
  Tubuliporidae
Order Cyclostomatida
  Annectocymidae
  Stegohorneridae Stenolaemata is a class under Phylum Ectoprocta. Stenolaemata typically live under seawater and grow on surfaces of rocks and shells. These species will have bryozoans' common characteristics, since they at one time were categorized under the bryozoa.