I know: its not a beautiful animal, nevertheless I would be interested to now something about its identification.
It is coming from Benthos. Obj. 4x, about 2 mm high.
A cnidarian polyp, or the distal parts of it which could also be a budding medusa ("ein Polypenköpfchen oder Medusenknöspchen" ), would be likely.
Edit to expand:
Franz, later today another possibility came to my mind to what group your animal could belong to, that I know from benthos samples: A zooid of the Kamptozoa. Then you would find no cnidocysts in the cells of the tentacles under higher magnification.
--Betty
Atticus Finch: "You never really understand a person until you consider things from his point of view
- until you climb into his skin and walk around in it."
Lee, N. H. 1960. To Kill a Mockingbird. J. B. Lippincott, New York.