Also known as Diamond Squid Eggs, Diamond Squid Mass, Diamondback Squid, Diamondback Squid Eggs, Diamondback Squid Mass, Oceanic Squid Eggs, Rhomboid Squid, Rhomboid Squid Eggs, Squidlings.
The photo shows the squid egg mass!
Found in pairs or small schools, over shallow and very deep waters of tropical oceans.
They feed on fish and other squid.
Length - 100cm
Depth - 0-2000m
These squid are sometimes mistaken for cuttlefish due to the large fin that surrounds their mantle.
Commonly seen at night and can be inquisitive of divers, however if approached they can swim backwards at great speed producing a jet of water from the funnel in the front. Their fins are used for turning.
This species is known for its elaborate courtship displays and size sorted schooling behaviour.
In some pictures can be seen the nursery of squid eggs hanging on lines like washing drying! All in sausage shaped bundles, when the squid hatch they will be as tiny as a grain of rice!!
(edit) Ref: https://en.wikipedia.org/wiki/Thysanoteuthis_rhombus