Their inconspicuous tentacles originate from the corners of the mouth, running in convoluted grooves and spreading out over the inner surface of the lobes (rather than trailing far behind, as in the Cydippida).

Members of the lobate genera Bathocyroe and Ocyropsis can escape from danger by clapping their lobes, so that the jet of expelled water drives them backwards very quickly.

[7] Each comb jelly will release roughly 8,000 eggs during spawning, which occurs during the night when the temperature reaches between 18 and 22 °C (64 and 72 °F).

[8] Thirteen days after spawning, young Comb jellies will have grown to a size in which they can release eggs and sperm daily.

[8] By continuously pumping water into its body cavity, comb jellies are able to trap small prey on adhesive cells, known as colloblast, which are found on the tentacles and on the underside of their lobes.