Ctenophora
From Microcosm Aquarium Explorer
Mnemiopsis sp., Warty Comb Jelly. Bastique/GNU
[edit] The Comb Jellies
Comb Jellies and Sea Walnuts
Number of Living Species: 50.
Common Characteristics: delicate, nearly transparent, typically pelagic marine animals that drift in coastal and oceanic waters; bioluminescent.
Noteworthy Behaviors: propel themselves with eight rows of fused cilia or combs (the ctenes); predatory on other forms of plankton.
From: Reef Life by Denise Nielsen Tackett