86
Found on a beach in Italy
(lemmy.world)
Let us help you identify that mysterious object you’ve found.
Currently in CHALLENGE mode: If you've got something obscure knocking about, post a picture, and let's see how we do. Please prefix such posts with "CHALLENGE:" so we know we've got a fighting chance.
Sorry that was my best guess, either broken or eaten cuttlebone. But if it doesn't look like the others then it's probably from another type of sea creature, someone else is bound to know more (E: looks like someone does!)..