It is a bathypelagic krill that lives in deep waters below NUMBER@1 m . It is distinguished from the Euphausiidae by several morphological features , the most apparent being that they are not bioluminescent and that their first pair of pleopods is not modified as copulatory tool organs .

It is a bathypelagic krill that lives in deep waters below NUMBER@1 m . It is distinguished from the Euphausiidae by several morphological features . The features most easily used to tell it apart are that the animals are not bioluminescent and that their first pair of pleopods is not modified as copulatory tool organs .
