1: white protoconch contrasts with pale brownish teleoconch bearing brown axial streaks.

2: diagnostic, minute, purple apical-spot mostly faint on specimens from this sample, as in Lleyn.

3: broad white labial varix set back from outer lip of aperture, not very thick; contrasts with brown shell.

Autumn juveniles, H. 1.3 mm, 1.5 mm & 1.3 mm, Fal Estuary, Cornwall, October 1998. Leg. coll. J.M. Light.