The ninth gilltail split from its ancestor, the gilltail, and moved from South Polar Coast to Ninth Bay. There it found an abundance of swarmers to eat. It has grown twice its ancestor's size, and now is completely carnivorous. They hunt in small schools of 5 to 10. They lay their eggs in the sand in the spring and they hatch in the summer. They are fast swimmers and have great stamina like their ancestors.