Archive for Bristle Worm

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

Oct
11

Eew! A Bristle Worm in My Seashell Sifter

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What the heck??? I was taking video of our pleasant little morning at low tide shelling the east end of Sanibel finding a SUNRAY VENUS, COCKLE SHELLS, a live LIGHTNING WHELK, and some hermit crabs in MUREX shells …then…. Clark finds a BRISTLE WORM in his new shelling rake (Sea Shell Sifter). Weird stuff, Dude, but a little on the cool side too. Take a look…

YouTube Preview Image

On the way on our “pleasant little morning” we met Brian and Mary from Weston, Florida who come to Sanibel for very big occasions. They got engaged 2 years ago on Sanibel then got married on Sanibel 3 months later.

Shell seekers from Weston, Florida

Mary and Brian (Weston, FL)

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