1: translucent tawny-white epipodial tentacle.
2: right neck-lobe curved to form complete bottle-necked siphon for exhalent water, faeces and reproductive products.
3: eye-peduncle red-brown dorsally and whitish ventrally, apart from bright blue distal area that extends slightly onto dorsum; small black “pupil” in blue area near dorsal edge of truncated tip.
4: transverse brown lines on proximal half of snout, and long bright blue papillae on distal half.
5: cephalic tentacle translucent brownish-white, with encircling black and opaque-white jagged rings. Unobtrusive, fine, longitudinal, dorsal, black line in slight dorsal groove faintly visible at base.
6: dorsal surface of cephalic lappet yellowish white with a few brown lines and fringe of blue and yellow. Sometimes lappet is orange or dark brown.
Image extracted from Gm22 22 Gibbula magus. Height 19mm, breadth 25mm. Cardigan Bay, Wales. 2015.
13 Gibbula magus. Cardigan Bay, Wales. 2015.
