It is called Percnon gibbesi. It is an "alien" crustacean spotted in the Mediterranean, for the first time in 2009, in Linosa, but probably already present ...
It is probably the glass Ctenophore or Bolinopsis vitrea and its host: a transparent Shrimp perhaps from the Phronima sedentaria or in any case a crustacean belonging to the Phronimidae family. ...
The Pagurus belongs to the Paguridae family. Hermit crabs are crustaceans with a curved and soft abdomen. It lives in empty shells of gastropods on which it sometimes attacks sponges or poisonous actinias to camouflage and defend itself. In case of danger it can withdraw completely inside the shell. The end of the tail of the hermit crab is suitable for strongly grasping the shell it always carries with it. When it grows and the size of the shell is no longer suitable is search for a new shell to protect yourself. In the video we see a hermit crab that has taken possession of the shell of the sea snail Phalium glaucum, a marine gastropod mollusc of the Cassidae family
Homarus Gammarus, known as the European lobster or common lobster, belongs crustaceans class, Malacrostaca subclass, Decapoda order, Nephropidae family, it has a body completely covered by a robust shell with two large claws ...
Often while snorkelling it happens to find some shells and in the Mediterranean it is easy to meet the Murex shell only that we do not always find the mollusk inside, Murex trunculus or Hexaplex trunculus, but the classic Hermit crab which has appropriated a bigger, more beautiful but above all safer house. We have probably found the Clibanarius erythropus, red-legged hermit crab, devil hermit crab or coast hermit crab, one of the most common hermit crabs in the Mediterranean but rarely of such dimensions as to be able to easily drag a shell like that of the Murex. ...
Eriphia verrucosa (Forskål, 1775), warty crab or yellow crab is a species of crab, found in the Black Sea, Mediterranean Sea and eastern Atlantic Ocean from Brittany to Mauritania and the Azores. Individual crabs have been caught as far north as Cornwall. ...