I'm looking for nudibranchs with gills along their entire back similar to this one. I'm trying to get rid of stinging hydroids and these seem to be the only thing that eats them. If you see any for sale, especially in Monmouth or Ocean counties, please let me know.
Like this kind:
Not this kind with a small group of gills:
Like this kind:
Not this kind with a small group of gills: