CLAMS, SCALLOPS and OYSTER shells. That’s what we’ve been seeing washed up on Sanibel beaches this week. Some experienced beachcombers might think this is a little boring since they have plenty of these bivalves and there weren’t many WHELKS and CONCHS to fill up their shell bag. But we always find interesting things and when Clark and I met Ilene, Dawn, Hudson and Ethan from St Petersburg, FL we saw they weren’t disappointed at this gorgeous evening either.
Ethan picked up an ARK SHELL with a hole in it and began telling me why certain shells drill holes in different areas of other shells. Oh wow- I just did a post on the different holes in shells last month so I wanted to know more. He told me that the further away the hole is from the hinge (what I call the “nose”), the predator mollusk is more stressed. If the predator drills near the hinge, he can get to all of the meat easily…but the shell is thicker there so it may take longer to drill. If the predator mollusk drilling the hole into the other mollusk is pretty desperate, he picks a spot that’s thinner and easier to drill but may not get much meat since the other mollusk might fight back or can slip away easier. A sign of a desperado. Thanks so much for such cool information, Ethan! BTW, Ethan teaches classes about Paleoceanography .
If I didn’t put you asleep on that explanation and you think this stuff is interesting too, here’s a photo of what I’m talking about. See the DOSINIA on the left with the perfect hole in the nose area and then look at the hole in the desperate CALICO CLAM with the hole in the middle of the shell. Why so desperate Mr. Murex? Okay, I’m not positive it’s a MUREX that made the hole but in my humble opinion, it sure looks like an OYSTER DRILL hole (part of the MUREX family). Take a look at my other post What Makes The Different Holes In Seashells?
Okay, lets get back to the beautiful shells… While we were all talking near Lighthouse Beach, Ilene showed me her pretty DOSINIA then I saw Hudson reach down and pick “candy” (juvie HORSE CONCH) right out of the shells at our toes. Clark then made a scoop in the water and pulled out a TRUE TULIP then gave it to them. Hmmmm, the shells looked like they were starting to come in but it was getting too dark to see.
Dawn just posted on iLoveShelling Facebook page this morning that they found all of these shells at Lighthouse Beach. Yes! The WHELKS and CONCHS are finally coming in… not that we were feeling desperate or anything. LOL
Thanks for posting, Dawn! Looks like we are going to be heading to Lighthouse Beach today to find some mermaid treasure but I’m really looking forward to our iLoveShelling cruise to Cayo Costa tomorrow with Captiva Cruises.
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