Head (1). Respiratory siphon (2). Edge of mantle (3). Penis (4). Pinnate, red-brown osphradium (5) and yellowish, pinnate ctenidium (6) constrained by translucent mantle. Osphradium with pinnae released from constraint (7). Visceral mass (8). Dorsal surface of foot (9). Operculum (10).
Shell H. 13.1 mm, penis L. 8 mm, Llŷn, North Wales, March 2016.
: flic.kr/p/2oiGpnC
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