The pelagic animal game

[smellzlikefish]

Ding ding!

Venus girdles, aka Cestum veneris, are ctenophores (comb jellies). They eat small crustaceans such as copepods and can swim in an undulating fashion to get away from threats.

Next one:

 

[vincent54]

Tubular Hydroid?

 

[smellzlikefish]

So close! It is a hydrozoan known as a narcomedusa. While hydroids are known for a prolonged polyp stage, narcomedusa do not usually have a polyp stage at all.

Let's try another one.