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Lycoteuthis diadema.jpg
Lycoteuthis lorigera
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Coleoidea
Order: Teuthida
Suborder: Oegopsina
Family: Lycoteuthidae
Genus: Lycoteuthis
Pfeffer, 1900

Lycoteuthis lorigera
Lycoteuthis springeri

Lycoteuthis is a genus containing two species of squid: Lycoteuthis springeri and Lycoteuthis lorigera. They are small animals which grow up to 8 cm in length.

These squid live in the deep sea at depths of up to 3000 metres, making horizontal migrations within their range along the steep shelves.

Lycoteuthis are particularly characterised by their photophores, shining organs which give them their German name "Miracle Lamps". The photophores are located in various parts of the body, with males having them on their mantle and head. The light of these photophores results from bioluminescence. The photophores serve as camouflage, since the body appears almost transparent by the light effects and normally visible structures, such as the eyes, lose their sharp outline.

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