Sea Floater

The sea floater descended from the Hydrogen Jellysquid. It grew a hydrogen sac that is so large that it is able to pull the animal from the water. The sea floater can control how much hydrogen is in the sac using a hole on it's forehead. A muscular flap similar to the human glottis keeps hydrogen from escaping. It must stay near the water so it can get it's hydrogen. The sea floater's tentacles that were beneath the breathing holes fused to form an optical tentacle, so it can see it's prey and the direction it's squirting the toxin. It's either a predator (eating anything that moves), or a scavenger. To catch their prey, the sea floater has developed chromatophores like celoid cephalopods on Earth. It can create pulsating patterns to attract prey, or blend in with the water to avoid predators.The four tentacles that dangled in the water are now ambulatory, and lost the poisonous spines. They can still be placed in the water when hunting. The two tentacles next to it's mouth grow longer and likens the appearance of an Earth squid tentacle. It becomes a manipulator. All of their tentacles have chambers filled with air to help their flotation in the air if they float over the water. Sea floaters reproduce in the same way as their ancestor, the hydrogen jellysquid.