The deep-sea scissorworm split off from the silverling, adapting to deep-sea life. It has grown larger than its ancestor as it feeds on larger prey. The front of the beak becomes flat and serrated to form a "scissor mouth", which is why the scissor worm got its name. It eats centifins and sometimes trigons if it can cut it up with its jaws. The scissor worm develops bioluminescence near its tail and and flash bright. This is for mating displays.