Psychroteuthis glacialis

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Glacial squid
Psychroteuthis glacialis paralarva.jpg
Psychroteuthis glacialis paralarva (<2 cm ML) from the Ross Sea of Antarctica
Psychroteuthis glacialis paralarva2.jpg
Another view of the same specimen
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Coleoidea
Order: Teuthida
Suborder: Oegopsina
Family: Psychroteuthidae
Thiele, 1920
Genus: Psychroteuthis
Thiele, 1920
Species: P. glacialis
Binomial name
Psychroteuthis glacialis
Thiele, 1920

Psychroteuthis glacialis, the glacial squid, is the only known species in the monotypic genus Psychroteuthis, in the family Psychroteuthidae. While only one species has been confirmed, two undescribed species also probably exist. The species occurs in coastal waters near Antarctica and South America. It grows to a mantle length of 44 cm.[1]


P. glacialis is known to feed on many crustaceans, fish, lanternfish, Antarctic krill, and Antarctic silverfish, and has been known to practice cannibalism.[2] Animals known to routinely feed on glacial squid include the Antarctic petrel, light-mantled sooty albatross, Ross seal, southern elephant seal, Weddell seal, Patagonian toothfish, wandering albatross, grey-headed albatross, and the emperor penguin.[3]


  1. ^ Roper C.F.E., M.J. Sweeney & C.E. Nauen 1984. Cephalopods of the world. Food and Agriculture Organization, Rome, Italy.
  2. ^ CephBase: Prey/Diet of Psychroteuthis glacialis
  3. ^ CephBase: Predators of Psychroteuthis glacialis

External links[edit]