Archive for Dosinia

Aug
06

Tuning Up The Shelling Eye

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Shells found at gulf side city park on Sanibel Island Florida

Gulfside City Park had some new beach treasures washing after a few days of heavy rain and wind across the Gulf Of Mexico. There were lots of DOSINIAS (DISK and ELEGANT) and other CLAMS lined up along the waters edge at low tide yesterday.

dosing shells wash up on Sanibel Island

While walking along the water’s edge with my good friend Mary (who has an exshellent shelling eye), I noticed the water had gotten churned up again with the wind so it was a little difficult to see the bottom even in the shallow water but that’s where all the shells were washing up. In another second, I watched Mary scoop up that marvshellous PAPER FIG (in the first photo) right before my eyes… and I didn’t even see a thing. Wow! Marvshellous Mary! I need to tune up my shelling eye- haha.

Mary with shells at Gulfside City Park beach on  Sanibel

I was happy to know my shelling eye wasn’t completely out of focus, I spotted this sweet SAND DOLLAR wash right up at my feet…

Sand dollar in seashells on Sanibel Island

Beautiful sisters Bronwyn and Brenna from California have been visiting Sanibel for 20 years and were thrilled to be here this week with complete shelling eye focus.

Beautiful Bronwyn and Brenna  with coquina shells

They were finding hundreds of double COQUINAS to make shell flowers. They try to join the shell crafters at Sanibel Community House each time they are here on Sanibel so they can learn more crafting secrets. Fun!

coquina shells found on a Sanibel Island beach

I didn’t see many new shells washing up at Blind Pass Captiva yesterday…

August sky at Blind Pass Captiva

I saw some interesting BLING tangled in some of the fresh weed lines at Blind Pass Sanibel and also some nice shells in the surf… so finding some goodies might be pretty productive on that beach today or tomorrow.

Blind Pass Beach Sanibel Island in August

As the Middle Gulf beaches on Sanibel looked to be the best for this week, a little birdie told me that Lover’s Key has been pretty productive too. ;)

Dosinia shells on a Sanibel beach

Lots of folks have been already been asking for my recommendations for places to stay this winter… Here you go!

popular places to stay on Sanibel Captiva

 

I’m still working on new dates for our iLoveShelling cruises but in the mean time, I already have some scheduled here… Join Us!

shelling adventures trips by pam

 

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Jul
06

Never Desperate Beachcombers

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beach combing sanibel for sea shells

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.

Dawn Ilene Hudson and Ethan love beachcombing

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?

holes in mollusk sea shells

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.

shoulda focused on seashells

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

photo by Dawn Goddard

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.

sea shell mermaid in the sand

Join us and receive a $25  gift certificate for jewelry from Sealife By Congress. Call 239-472-5300 to reserve your spot for 9am.

shelling adventures trips by pam

drilled heart in seashell

i heart seashells. Shells have a way of talking to us, don’t they?  They make us feel deeply connected to the vast sea and pull us towards it. This PONDEROUS ARK shell washed up at my feet with a heart carved in it. Awwwwe, so sweet! I love you too! But hmmmm… other than being an oh-so-sweet message from King Neptune, how did this happen?

i heart this seashell

We see natural holes drilled in all sorts of shells, so it’s time to find out how they are made. The hole in this SHARKS EYE tells me a little secret of what happened to its life. The clue? It has a perfect countersunk borehole with a beveled edge twice the diameter as the inner diameter. Because of the shape of that hole, you can bet that he was eaten by another SHARKS EYE!  OMG They are cannibals!

sharks eye shell is cannibalistic

We have to guess what happened to this next guy because it looks like a fellow predator SHARKS EYE started carving up his next meal but stopped before he tasted victory.

sharks eye drilled hole by other mollusk

By looking at the hole in this DISK DOSINIA, I’m going to assume that a SHARKS EYE made a meal out of this guy too.

sharks eye drilled hole in dosinia shell

Geez, SHARKS EYES have a smorgasbord of choices for their buffet. Looks as though they like BUTTERCUP LUCINES too.

sharks eye mollusk drilled hole in buttercup shell

A straight hole with only a slight beveled edge like this LADY-IN-WAITING VENUS CLAM …

lady-in-waiting venus clam with drill hole

…was most likely drilled by some sort of MUREX… like GULF OYSTER DRILLS. Aha! That’s why they are called “DRILLS”!

gulf oyster drills sanibel florida

The grooves in these CROSS BARRED VENUS CLAMS and TRANSVERSE ARK aren’t the handiwork of the SHARKS EYE or DRILLS. These grooves were most likely made by a BRISTLE WORM. It uses a rasping technique with its bristled body while secreting acid to etch a groove in the shell to make a nice cozy place to rest.

bivalves with bristle worm grooves

If you have never seen a BRISTLE WORM, click on the video to watch the first time Clark and I came across a BRISTLE WORM…. and then come back to see what cute tokens they make. YouTube Preview Image

Last May, Lisa from Shellabaloo 2 was having a great time sifting through shells at Blind Pass Captiva and found a few messages on shells she shared…

lisa shells bp

After Shellabaloo, she sent me this sweet CROSS-BARRED VENUS shell with a smiley face on it (made by a BRISTLE WORM). I keep it by my desk!

smiley face seashell

She also found a “K” on a CROSS BARRED VENUS…

seashell k for kendra

Lisa was so thoughtful, she gave it to another Shellabaloo-er… Kendra. K for Kendra!

seashell k for kendra

So let’s get back to that heart I received from King Neptune … these bigger holes most likely were drilled by a STIMPSON CHIMNEY CLAM. Oh, What? You’ve never heard of a STIMPSON CHIMNEY CLAM before? LOL Well, neither had I before I got so curious about what made that heart shape and found out that two separate drilled incidences by these clams are the most likely culprit. When I find a STIMPSON CHIMNEY CLAM, you will be the first one to know about it and I will post a photo. I already have an appreciation for them since they are quite the artists!

holes drilled in shells by other mollusks

I just assumed that a shell with lots of little holes in like this was just from regular wear and rear by the salt and wave action… like when you wash and wear your favorite shirt too many times. One day, you’ll start to see holes in it! But some times shells that look like this tend to be “holey” because BORING SPONGES have invaded it as a living space.

holes in a shell made by boring sponge

I’ve always been drawn to shells that have holes for stringing them for crafts….

seashell mobile close shells

For gift tags…

sea shell gift tag

And I always love to see someone string them for jewelry…

patricia strings seashell with natural hole

I would have never known where to start finding information on these cool holes in shells if Lisa from Shellabaloo 5 (OMG I just realized… both Lisas from different Shellabaloos are fascinated with holes in shells too! Ha! They need to know each other, wouldn’t you say?) anyway… I wouldn’t have known there was such a term as “Shell Bioerosion” and such if she hadn’t shown me where it was in this book Living Beaches of Georgia and the Carolinas .

There’s all kinds of fun to be had in exploring the common shells if you just give them a chance. They may even tell you a secret!

sea shells with holes drilled by mollusks and sponges