''Chiroteuthis imperator,'' or the emperor squid is a species of chiroteuthid

squid True squid are molluscs with an elongated soft body, large eyes, eight arms, and two tentacles in the superorder Decapodiformes, though many other molluscs within the broader Neocoleoidea are also called squid despite not strictly fitting t ...

. It lives off the coast of

Sumatra Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent i ...

in the Indo-Pacific Ocean..Chiroteuthis (Chirothauma) imperator - Properties - The Taxonomicon
It grows to a mantle length of 30 cm, and has incredibly long arms which give it a total length of probably 1,6m..

References

Squid Molluscs described in 1908 {{squid-stub