H. hyotis is a bivalve mollusk that attaches itself to a hard substrate, just like any other oyster. Its native range is in the Indo-Pacific, but has been found around the islands South of Florida. The particular shape of the opening of the shell is what appears to be an easy way to identify this shell, however Lopha cristagalli looks almost the same.
This, and many other shells are often overlooked in the museum, not that many people love bivalves! I can look at all these shells for an hour, but I sadly don’t share that trait with a lot of people.
Animalia - Mollusca - Bivalvia - Ostreoida - Gryphaeidae - Hyotissa - H. hyotis