Since only two Bryozoan remedies exist, provings of any other Bryozoa would be well received. Some particularly interesting 
species would be a nosode made from “Doggers Bank Itch” a condition of chronic dermatitis caused by exposure to Alcyonidum diaphanum. Bugula neritina, a source of anticancer chemicals might also be an interesting choice. The noncolonial bryozoan species, Monobryozoon ambulans. would also be an interesting choice.
Image credit: https://commons.wikimedia.org/wiki/Category:Bryozoa#/media/File:Flustrellidra_hispida_2090a.JPG