Green-banded Broodsac (Leucochloridium paradoxum)
…a species of parasitic flatworm that is found in Europe and North America. L.paradoxum begins its life style inside the digestive system of a snail it will then develop inside the snail (Usually S.putris) and take over its body and place its ‘broodsac’ inside the snail’s tentacle (usually the the left). Then it will ‘drive’ its host to an open area and put on a display in order to attract birds. Once inside the bird the flatworm will lay its eggs which will be passed when the bird defecates. A snail will then find and eat the excrement and the life cycle will repeat itself.
These gelatinous, slug-like creatures were all over the beach. Rhino adopted one and brought it home in a bucket. He has been faithfully changing the sea water daily. We looked it up online to find it is a Moon Snail Egg Mass. Really, we should just break down and get the poor kid a dog…