Gymnolaemata

Gymnolaemata is a class under phylum Bryozoa. Gymnolaemata typically live under seawater and grow on surfaces of rocks, kelps, and even in some cases, on living species like fish. These species will have bryozoans' common characteristics, since they are categorized under the bryozoa.

They can be divided into 4 orders, Ctenostomida, Cheilostomida, Cheilostomatida, and Ctenostomatida.