These are variations of bobtail squid. These tiny creatures live in the pacific and indian oceans within shallow water. They generally measure between 1 and 8cm long. They are usually recognized by their eight short tentacles and rounded shape.
Bobtail squid have a symbiotic relationship with bioluminescent bacteria which inhabit a special light organ in the squid’s mantle. The bacteria are fed a sugar and amino acid solution by the squid and in return hide the squid’s silhouette when viewed from below by matching the amount of light hitting the top of the mantle.What a wonderful thing nature is.