Emplectonema kandai is a marine ribbon worm, found in the Aomori Bay at a depth of 35–40 meters, and coiled up on Chelyosoma sea squirts.[1] They are reddish orange in color. They have many eyes. They vary in length, from 53–115 cm, and are about 0.5-0.7 mm in diameter, when they are stretched. It is the only currently known bioluminescent member of the genus Emplectonema, and furthermore is currently the only known bioluminescent ribbon worm.[2] E. kandai flash brilliantly in an internal (non-secreted) luminescence, but only on stimulation. The stimulus may be mechanical, chemical, thermal or electrical. The color of their luminescence is whitish-green.