Vai al contenuto
Arca

Vampire squid

Vampyroteuthis infernalis

Conservation status IUCN: Not evaluated· NE
Vampire squid (Vampyroteuthis infernalis)
Photograph from Wikimedia Commons · 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.

Next species

West Indian fuzzy chiton

Acanthopleura granulata