Last night a spring trip to Henley Beach for a play on the sand followed by salty fish and chips had a touch of the documentary about it.
In addition to observing multiple throngs of teenagers performing elaborate mating rituals, I found these beautiful conical shells. Their size is shown relative to a grain of basmati rice (bottom of the photograph).
My trusty tome Sea Shells of South Australia is en vacances at Yorke Peninsula at the moment, so I’m unable to identify them. Can anyone help with a positive ID?