1: no oral tentacles or veil with elongate processes. 2: propodial tentacle. 3: glandular ceras has internally white tip; probably produces repugnatory secretion. 4: internal white tip of thickened collar of rhinophore sheath might produce repugnatory secretion. 5: cerata by gills often deformed, sometimes bifurcate, this one stunted. . Length 11.5 mm. Menai Strait, Wales. September 2015.