What the heck is this!

neilsarah

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Anyone know what these are? I have seen them a few times today k saw one of my crabs grab one and looks like he’s eating it. I have a few of them on the sand bed and no clue where they came from.

50145F6B-1055-4881-96FD-F69CB02274C9.jpeg A4B0D771-9F3A-4014-B10B-1D5A16305C8A.jpeg
 

vetteguy53081

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Looks like the trap door of a previous snail known as operculum, but pics under white lighting would truly confirm. This is what we see:

1675131812647.png
 

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