1. Anterior of Goniodoris castanea. Body length 10 mm. p: penis in brown sheath (hermaphrodite, so all adults have). r: rhinophore. o: oral veil with S-shape edge. On rocky shore exposed to strong currents, LWS, Menai Strait, Wales. April 2011.
2. Anterior of Goniodoris castanea. Body length 10 mm. p: penis in brown sheath (hermaphrodite, so all adults have). r: rhinophore. o: oral veil with S-shape edge. On rocky shore exposed to strong currents, LWS, Menai Strait, Wales. April 2011.

Anterior of Goniodoris castanea. Body length 10 mm. p: penis in brown sheath (hermaphrodite, so all adults have). r: rhinophore. o: oral veil with S-shape edge. On rocky shore exposed to strong currents, LWS, Menai Strait, Wales. April 2011.