To begin with we thought this creature was part of Siphonophores (Eschscholtz, 1829) belong to the phylum Cnidarians and are a class of marine invertebrates. They form super colonies which sometimes can resemble jellyfish. Although it might seem like one organism the colonies are formed by many distinct looking organism individuals. Some of the most famous members of this group are the Portuguese Man o' War (Physalia physalis) and Praya dubia, one of the largest animals in the world (40-50 m). However, thanks to Philip Pugh, we believe it is now a part of of a Pseudothecosome pteropod, called Cymbulia. Very exciting. Thank you Philip. Pteropods are floating sea animals that scientist only know very little about.

We have come across this organism a number of times. Nevertheless did it fascinate us with its ability to completely disappear when put in water.

Video showing how the creature totally disappears when submerged in water