Hi again, ‘t was a little late last night, but now i looked it up in the carribean guide.
I’ts deffinitely a snail, I think, Cyphoma, but don’t know wich one, the collor and print is the determination, it’s a gastropoda and subclass prosobranchia
Yours also is feeding on a gorgonia, whatever the print or color, they all attach to and feed on gorgonians in all types of habitats, and the mantle normaly is extended over the shell.
You might try to find it with this information and specify the name by the print of the mantle. Succes!!!
I’ll try to attach a picture of a flamingo tongue, (cyphoma gibbosum) you’ll see what i mean.
Greetings, Claudia