01 Onchidoris bilamellata

01 Onchidoris bilamellata

Extended specimen 14.5 mm long. Mantle conceals foot. Brown pigment between white tubercles on all parts to the periphery, palest to posterior of gills. Gill ring is a large transverse slender ellipse across about 60% of body width, anterior almost flat.
Llŷn Peninsula, Wales. March 2016.