Common in shallow water behind the wave break off exposed surf beaches. It differs from G.radians in having slightly wider ribs and fine brown zigzag markings in concentric rows towards the top of the shell.
Max Size: 5 cm
Sea Temperature Range: 16.4-22.6°C
Habitat: Soft sediment
IUCN Threat Status: Not Evaluated
Occurrence: Common (25% of sites)
Occurrence describes how often the species is found on surveys within its distribution.
It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed
Abundance: Solitary (1 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: GJ Edgar. 2008. Australian Marine Life. New Holland, Sydney