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Chrysallida lucida (Laseron, 1950)

Description: Shell small, wide, spire convex in outline, up to 5 teleoconch whorls, last whorl 2/3 shell length. Protoconch infolded, type C. Whorls strongly rounded, sculptured with curved axial folds on upper 2/3 and spiral cords on lower 1/3; last whorl with spiral cords extending onto base. Aperture wide with a weak columella plait (barely visible in figure due to orientation of shell); outer lip sinuous in profile. Umbilicus narrowly open. Shell colourless transparent becoming opaque white with age.

Size: Up to 2.7 mm in length.

Distribution: Known from Port Stephens, NSW, southwards to Twofold Bay, NSW, but this probably reflects the limits of collecting rather than the real distribution.

Habitat: Empty shells are known from beach washup and down to 32 m. Common.

Synonymy: Linopyrga bisculpta Laseron, 1951 is a previously recognised synonym.

Fig. 1: Clontarf, Middle Harbour, NSW (C.340898)

 

Copyright Des Beechey 2017