Hydroides
Hydroides is a genus of tube-forming serpulid worms found on submerged saltwater rocks, shells, and boats in many coastal areas around the world.
Species
It contains the following species:Hydroides bispinosa Hydroides brachyacantha Hydroides crucigera Hydroides dianthus Hydroides dirampha Hydroides elegans Hydroides ezoensis Hydroides huanghaiensis Hydroides lirs Hydroides longispinosa Hydroides microtis Hydroides norvegica Hydroides parva Hydroides protulicola Hydroides sanctaecrucis- ''Hydroides xishaensis''