Haplota clavata is a bryozoan species that has only been registered a few times in Norway. It is probably not because the species is rare, but rather that it has been overlooked. The colonies are not large, and even though they encrust a substrate, they also develop these erect “branches”.
In Artskart, there are only four records of this species, and all of them are about 100 years old or older! Fortunately, we will contribute with more (and newer) finds from our project.
The genus Haplota belongs to the family Hippothoidae, a family that is known to contain other genera that also form uniserial colonies (like Hippothoa).