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 vary in length, from 53–115 cm, and are about 0.5-0.7 mm in diameter, when they are stretched.

[2] E. kandai flash brilliantly in an internal (non-secreted) luminescence, but only on stimulation.

The stimulus may be mechanical, chemical, thermal or electrical.