We found this small, maybe parasitic, crustacean in the North Sea offshore. The posterior body part is missing, but it looks quite characteristic. There is double-hooked rostrum, 2 antennae (second pair broken off), 2 small eyes on each side of head, no coxal plates, and maybe a sucker-like structure near mouthparts.
Stained with Shirlastain A.
We don't have any clue to which higher group it belongs, and would be happy if anyone can give a hint.