The space within the ellipse is crowded with large tubercles and, often, about five additional small gills. There is a small gap (1) in the posterior of the ellipse.
Body length 13 mm. Menai Strait, Wales. February 2013.
12 Onchidoris bilamellata
The space within the ellipse is crowded with large tubercles and, often, about five additional small gills. There is a small gap (1) in the posterior of the ellipse.
Body length 13 mm. Menai Strait, Wales. February 2013.