I saw this beautiful specimen of Umbaculum mediterraneum during a dive in a Mediterranean coral reef at a depth of over 70 meters. In many years of diving I had never come across this nudibranch. It is an adult specimen of rather large dimensions, in fact it is well over 20 cm in length. This leads me to think that, together with Aplysia depilans, it is among the largest nudibranchs present in the Mediterranean Sea.

We are on some isolated rocks at a depth of 40/46 meters, where we have found two beautiful specimens of Charonia tritonis, Giant mediterranean triton.  This is the mollusk and consequently the largest shell in the Mediterranean Sea. In this dive we met two of them, we filmed the first one casually on the wall we were exploring, we realized watching the footage that we passed by without seeing it. The second was inside a hole from which we moved it to try to film it better. ...

Charonia tritonis, common name the Triton's trumpet or the giant triton, is a species of very large sea scnail, a marine gastropod mollusc in the family Charoniidae, Gastropoda class. The tritons reaching up to 60 cm ...

Charonia tritonis, common name the Triton's trumpet or the Giant Triton, is a species of very large sea scnail, a marine gastropod mollusc in the family Charoniidae ...