English: Pippies (Plebidonax deltoides) in their shells for sale at a fishmonger in Blacktown, Western Sydney, NSW, AU. In this close view, the bed of shells fills the frame.
Shells have olive green or golden pericostracum (darker browns are known but less common and not visible in this photo). The coating is worn in places to reveal the pink-mauve shell material underneath.
Spelling: pippi or pipi (sing.), pippies or pipis (pl.).
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