The suctionrorm split from it's ancestor. They are twice as big as their ancestors. Their underbellies now take the shape of a sucker-like organ with slat-like structures that open and close to create suction. For extra hold, they secrete a sticky mucus that creates a firmer hold against the skin of larger marine gilltails and relatives. This allows them to be transported all over the ocean without expending energy. They now use their sensory bristles to prevent objects that are too large from entering their throats, which could cause blockages or starvation.