13 Onchidoris bilamellata

13 Onchidoris bilamellata

The head consists of a wide, curved, wavy edged, white oral veil, with a slight yellow tint near the mouth.
The translucent white sole shows yellowish viscera. It is an ellipse, smoothly rounded at both ends.
Body length 13 mm. Menai Strait, Wales. February 2013.