pottos:

Basically upside down Sea Stars, Feather Stars, also known as Crinoids, are a very interesting class with approximately 625 species known. Generally stationary during the day, they tend to come out at night or extend their arms in order to trap food. Like other Echinoderms, Feather Stars have tube feet, however their tube feet lack the suction cups that are present in Sea Stars, Sea Urchins, etc. They instead secrete mucus that traps food particles and directs it into grooves where cilia move the particles to the mouth. [x]

Here, have another moving crinoid.  A comatulid this time.