1: long, translucent-white, dorso-ventrally-flattened, metapodial tentacle extends from opercular disc. 2: operculum horn-colour, translucent showing dark underlying opercular disc. 3: blackish opercular lobe. 4: translucent snout extended, with yellow salivary glands and odontophore withdrawn. 5: single white line in cephalic tentacle reduced to two short marks. Shell height 3.2 mm. Llŷn, Wales, March 2015.

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