Cestoplana rubrocincta
This long narrow flatworm with an orange mid-stripe and orange margin was found weaving its way through the rubble in North Kihei, Maui. It is the first of its kind that we know of to be documented east of Australia. It’s difficult to say how long it was as it was in a ball when I touched the rock and it unraveled quickly into a hole. Possibly 75 mm or 3 cm. John Hoover has added more of the discussion between Cory Pittman and I on his website.