We found this shell at Hendry's Beach this week. Can you identify it?
Thanks for sharing this shell, Jay! It looks a little beach-worn, but this appears to be a specimen of Dallocardia quadragenaria (formerly Trachycardium quadragenarium), commonly known as the Spiny Pricklycockle. If it were not worn down, there would be little spines along the ridges.
Invertebrate Zoology Collection Manager Vanessa Delnavaz, M.A.