Amphipod, Hirondellea dubia, from 7000 m deep infected by a nematode parasite occupying much of the body cavity. The length of amphipod is about 1.5 cm.
[Hadal Ecosystem Studies (HADES) Kermadec Ridge 2014 expedition, led by the Woods Hole Oceanographic Institution and funded by the US National Science Foundation.
Image filename: Hirondellea_trophomera 7000 m Kermadec TN309.]