1: rhinophore has smooth basal third and about 14 prominent lamellae, lower ones incomplete, on upper two thirds. 2: flared sheath with projecting collar-like summit (3) encloses rhinophore for almost full height on all sides, except mesial.
4: anterior of head rectangular with medial notch (extension of ventral buccal aperture). No oral tentacles or oral veil with elongate processes. 5: propodial tentacle. Length 11.5 mm. Menai Strait, Wales, September 2015.