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Arca

Vampire squid

Vampyroteuthis infernalis

Conservation status IUCN: Not evaluated· NE
Vampire squid (Vampyroteuthis infernalis)
Photo: National Marine Sanctuaries · Public domain · File page · Wikipedia article (it)

— Where the name comes from

Vampyroteuthis infernalis means “vampire squid from hell”, and there is no way of making it less theatrical. Carl Chun named it in 1903 looking at a black specimen, the web between its arms spread like a cloak and its eyes red: it looked like a vampire in miniature. It is a name that has condemned the animal to a false reputation, because it sucks nothing and hunts nobody.

— Facts

Group
Molluscs · Mollusca
Order
Vampire squid
Habitat
The oxygen minimum zone, between 600 and 1,200 metres
Range
All temperate and tropical oceans
Size
Up to 30 cm
Diet
Marine snow: detritus, remains and droppings sinking from above
Lifespan
8 years or more

— Characteristics

  • 01

    It is neither octopus nor squid: it is the sole survivor of an order of its own.

  • 02

    It breathes in water with oxygen at 3% of saturation.

  • 03

    It defends itself by pulling its mantle over its head, like a closed umbrella.

— What sets it apart

It eats the dust that falls. For a century it was believed a predator, and instead it unfurls two extremely fine filaments eight times its body length and uses them as passive lines to gather marine snow — remains of plankton, shells, droppings drifting slowly down from the surface — kneading it with mucus into small parcels. It is the only known cephalopod that hunts nothing living. It inhabits the oxygen minimum zone, a band where almost no active animal survives, and manages it with a very low metabolism, blood extraordinarily avid for oxygen, and a gelatinous body with almost no muscle.

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West Indian fuzzy chiton

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Acanthopleura granulata