This individual was collected at CIMAR24 station Polygon 1A at a depth of 166 m on the continental shelf. I’m not that confident of the identification of this specimen, but on the evidence available I’m going to place it as Trefusia. The specimen is juvenile so there is little to go on. The cephalic setae appear to be jointed, the buccal cavity is small and conical. I can not see any amphids. The most striking feature of this species is the very long filiform tail which is at least 50% of the body length.