I saw that in Jamaica last week.
I don't know what it is.
Is it egg? Never saw before.
This might be the eggs from a whelk, but not sure.
If you get a positive ID, then we can apply that ID to the photos I posted recently.
I have found two sources with photos which both identify this egg case as that of a West Indian Chank, a snail similar to a whelk. To view these photos, go to Google Images and do a search on "West Indian Chank".
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