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European spiny lobster

Palinurus elephas

Conservation status IUCN: Vulnerable· VU
European spiny lobster (Palinurus elephas)
Photograph from Wikimedia Commons · Wikipedia article (it)

Where the name comes from

Palinurus is the helmsman of Aeneas: in the Aeneid he falls asleep at the tiller, drops into the sea and drowns off the headland that still bears his name, Capo Palinuro. Elephas is the elephant, for the long stout antennae the animal waves before it like trunks. The name puts together a shipwreck and a pachyderm, and says nothing of what the lobster actually does — which is to walk in single file across the sea floor.

Facts

Group
Crustaceans · Malacostraca · Maxillopoda
Order
Crabs, lobsters and shrimps
Habitat
Rocky and coralligenous bottoms between 20 and 150 metres
Range
Mediterranean and eastern Atlantic, from Norway to Morocco
Size
20–50 cm, up to 8 kg
Diet
Molluscs, urchins, worms, carrion
Lifespan
15–20 years

Characteristics

  • 01

    It has no claws: it defends itself with spiny antennae and backward flight.

  • 02

    It rasps by rubbing the base of the antenna against the carapace.

  • 03

    The larva is flat and transparent and drifts for months in the plankton.

What sets it apart

It makes a sound that does not depend on its shell. Almost all crustaceans that rasp do so by rubbing two hard parts together, and after moulting — when the shell is soft — they fall silent exactly when they are most vulnerable. The spiny lobster solved the problem with a viscous-friction mechanism: a small plate slides over a smooth surface like a wetted bow on a string, and it works even with a soft shell. The sound carries tens of metres underwater. The larva is unrecognisable: flat as a microscope slide, transparent, with very long legs, it drifts for as much as ten months before settling and becoming a lobster.

Next species

European green crab

Carcinus maenas