“Have you heard about the latest Okeanos mystery?

),“the Okeanos team tweetedon Wednesday.

Have you heard about the latest#Okeanosmystery?

I think it resembles an underwater version of Inky the ghost from Pac-Man.

A different specimen also spotted by the remote-operated dive vehicle looked more like a puddle than a ghost.

The team offered several ideas for what the critters might be.

Soft corals, as the name suggests, have soft bodies.

Sponges have porous bodies that allow them to filter their food from the water.

Tunicates are marine invertebrates sometimes known as sea squirts.

It’s a major bonus along the way to discover unknown and mysterious animals that dwell there.

It highlights how much more we have to learn about the deep.