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Collecting seashells on the beaches of Sanibel, Captiva and the world

6 Most Common Shells On Sanibel Island, Florida

Posted by on Jun 6, 2015 in Ark, Coquina, Cross Barred Venus, Jingle, Kitten's Paw, Ponderous Ark, Transverse Ark | 19 comments

The Most common shells on Sanibel Island Florida

Have you ever wondered what are the most common seashells that wash up on Sanibel? We see them every day on the beach but all of those “little white CLAM shells” start to look the same and we tend to look over all of them in search for our favorites like the TULIPS and WHELKS.

common bivalve shells on sanibel island, florida usa

If you have shelled the beaches of Southwest Florida several times, then you might not be surprised to hear…

The 6 most common shells found in beach drift on Sanibel, Florida are:

TRANSVERSE ARK (Anadara transversa), CROSS-BARRED VENUS (Chione elevata), PONDEROUS ARK (Noetia ponderosa), KITTENS PAW (Plicatula gibbosa), COQUINA (Donax variabilis) and the JINGLE (Anomia simplex).

6 Six most common shells on Sanibel Florida

They look pretty familiar don’t they?

Sanibel most common 6 sea shells interior

The TRANSVERSE ARK (Anadara transversa) seashells are literally everywhere on our beaches and this is why it’s hard to find any other shell on the beach because we get so overwhelmed by looking at so many of these “little white clams shells”.

ark shell Anadara transversa

CROSS-BARRED VENUS (Chione elevata) shells always intrigue me because they have so many different interior colors.

Sanibel common cross barred venus Chione elevata

PONDEROUS ARK (Noetia ponderosa) normally looks like just a bigger version of the TRANSVERSE ARK but when they are juveniles, it is really hard to tell the difference. Closely looking at the interior is the only way to decipher the juvie PONDEROUS from the adult TRANSVERSE.

common ponderous ark Noetia ponderosa

KITTENS PAW (Plicatula gibbosa) – How can you walk on a beach in Sanibel and not smile when you see one of these?

Sanibel common kittens paw shell Plicatula gibbosa

COQUINA (Donax variabilis) shells have stolen the hearts of most of us the first time we walked on the beach and saw these sweet little butterfly shells scattered along the beach.

Sanibel common shell coquina Donax variabilis

JINGLE (Anomia simplex) shells are like shimmering little beacons calling out from the sand- love them.

Sanibel common jingle shell Anomia simplex

So how do I know that these are the most common shells on Sanibel? Well, because Susan Hewitt (our Susan H !) did a comprehensive but simple research study of the most abundance shell species while she was visiting Sanibel in 2011. She took loads of samples all along West Gulf Drive to separate and count each species. (This was not her sample bag in this next photo- she had buckets full)

Susan Hewitt shell collections

I helped with her study by scooping up shells for her shell material research on the beach at Blind Pass Sanibel.

Common Sanibel shells research data collections

I also took samples at Sanibel’s Lighthouse beach for her.

Sanibel seashell research collections bucket lighthouse beach

After identifying, separating and counting every single shell collected, she got to work on writing her paper. To read her entire study paper, CLICK HERE

Sanibel Most Common shell collage Paper

So now we know! It was so much fun being involved in her very cool project to answer the question asked about our beaches of Southwest Florida “What are the most common shells on Sanibel?”. Thanks Susan H for this awesome report!

pam rambo susan h identify bivalve seashells

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Beauty Is In The Eye Of The ShellHolder

Posted by on Mar 13, 2015 in Broad-Ribbed Cardita, Fish of Florida, Ponderous Ark, Sea Whip, Snook | 20 comments

Cardita seashells in a sandy palm on Sanibel Island

The beaches of Sanibel and Captiva have been gorgeous this week with plenty of sunshine and warm breezes. But shelling has been hit or miss… to some people. In the past few days, I’ve been asked countless times “Where are the shells?”. That’s hard for me to answer since I saw this at Gulfside City Park beach today…

shells and waves make awesome days

Uhmmmm. Those look like shells to me?  There weren’t many WHELKS, TULIPS or CONES but this is how I look at it… if JUNONIAS and ALPHABET CONES were washing up on the beach every day, we would never see or learn about anything else that washes up on the beach. It would be nice at first seeing an ALPHABET soup of JUNONIAS but after a while it would kinda get old to people who come to the island every year. We do that with FIGHTING CONCHS at times. There’s no denying FIGHTING CONCHS are gorgeous shells but if you already collected 10 of them, you start to look for something else. So I always look forward to the days that make me slow down to look more closely to the shells I normally don’t “see”. Today I saw BROAD-RIBBED CARDITA shells. BROAD RIBBED CARDITAS are always on our beaches. I mean ALWAYS… but most of them have been sun bleached or worn so they look like lots of the other white BIVALVES. They are one of the most common shells in Southwest Florida but today they caught my eye because they were so colorful. Each one has a different color range of orange with some having stripes and some look like polka dots. Beauty is in the eye of the shell holder. These would be great craft shells for frames!

cardita shell carditamera floridana Sanibel

Anyway, there were a few other sweet shells out there too…

beach finds on Sanibel's Gulfside City Park beach

I also saw oodles of SEA WHIPS attached to PONDEROUS ARKS in the high tide wrack line. Most of the SEA WHIPS have lost their pretty yellow or purple colors and all that’s left is the black stem left attached to the ARK shell but this one still has a small portion of the golden yellow color still left on the stem like a sheath. Why do SEA WHIPS only seem to like to attach themselves to PONDEROUS ARKS? Of course I have a theory (I always have a theory whether its right or not- heehee). PONDEROUS ARKS have that wonderful thick black PERIOSTRACUM (skin) and they have wide ribs so SEA WHIPS have something pretty substantial to anchor themselves to. Most shells don’t have either of those features so it makes perfect sense to me, how about you? (To see a PONDEROUS ARK CLICK HERE)

ponderous ark with sea whip attached

Yes, those CARDITAS were pretty orange but this LETTERED OLIVE was my fave find of the day.

olive shell on the beach with sea foam

Oh wait- I take that back! This 33 inch, 15 pound SNOOK was my fave find of the day! I love everything there is to do on the beach and fishing is just one more thing I think is very cool. Just like shelling, you just never know what you’re gonna find. Some days you catch the big one and some days its just a nice excuse to be out in the sunshine.

pam rambo with Sanibel snook fish fishing

Errrrrr…..Okay, I’ll fess up. This is kinda a fish tale…. “my fave find” was actually caught by a guy named Steve but I couldn’t wait to get my hands on that beautiful fish. I “found” it in Steve’s hands. Hahahaha. i Love Fishing too so next time I wanna reel one in!

Hey, Dont forget… Monday March 16, 2015 – Congress Jewelers are showcasing my Shellography with a wine and cheese gallery reception from 11am- 3pm. I’d love to meet y’all! Bring your fave finds in if you want me to ID them.

canvas shellography congress reception

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What Makes The Different Holes In Seashells?

Posted by on May 16, 2014 in Ark, Boring Sponge, Bristle Worm, Buttercup Lucine, Disk Dosinia, Gulf Oyster Drill, lady-in-waiting, Ponderous Ark, Shell Book, Stimpson Chimney Clam | 26 comments

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]https://www.youtube.com/watch?v=XCQpylW-x8E[/youtube]

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

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I Spied An Ark On Sanibel

Posted by on Feb 11, 2014 in Ark, Beach Art, Cut Ribbed Ark, Lineate Dove Snail, Mossy Ark, Ponderous Ark, Transverse Ark, Turkey Wing | 15 comments

common shell sanibel florida

I spied thousands of ARKS at Gulfside City Park on Sanibel Island this morning. Most days you can find TRANSVERSE ARKS scattered along the beach since they are one of the most common shells on Sanibel.

ark shells sanibel

There are a few different species of ARKS so let me show you the difference. Top row left to right-  a MOSSY ARK and a TURKEY WING. Bottom row left to right- CUT-RIBBED ARK, TRANSVERSE ARK and a PONDEROUS ARK.

common sanibel ark shells difference

It’s a little easier to identify bivalves and see the difference (and the likeness) between them by looking at the interior of the shell. 

interior ark shells

I only had a few minutes to walk the beach today so I just wanted to look for minis in some of the wrack lines I pointed out the other day in my Shelling 101 video. I found TUSK SHELLS (there were thousands of those too), a KEYHOLE LIMPET, WENTLETRAPS, CERITHS, AUGERS, a TURRID, juvie CONCHS, juvie OLIVE, and a piece of CORAL.

miniature shells sanibel gulf side city park

I also found a somewhat beat up LINEATE DOVE SNAIL.

Lineate dove snail sanibel

If you need any help identifying any of these shells, check out my Seashells Identification Page

common shell sanibel florida

As I walked this morning, I couldn’t help but notice this amazing village sand sculpture on the beach- with its own arena and swimming pool. I was inspired to write about ARK SHELLS because so many artists like to use these sweet little white shells as embellishments for their pieces of art- just like this beach artist did. ARKS are perfect decorations for so many projects. Inspiring!

sand castle village sanibel

pam rambo shelling trips

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Cockles, Conchs and Quahogs

Posted by on Nov 29, 2011 in Alphabet Cone, Angel Wing, Atlantic Giant, Banded tulip, Colorful Moon shell, Dark Cerith, Fighting Conch, Horse Conch, Lightning Whelk, Pen Shell, Ponderous Ark, Sanibel, Southern Quahog, True tulip | 13 comments

sanibel seashells on pen shell

After several weeks of east winds, the west winds have finally arrived to drive some shells on to our beaches. Today was only the first day of the westies but since it was a really low tide this morning, I figured I’d find some goodies. It’s always a good day when you find an ALPHABET CONE and you’ve got to see just how darn cute this little juvie HORSE CONCH is…

juvenile horse conch

I couldn’t believe I found this ANGEL WING sitting in the high wrack line…

angel wing bivalve sanibel shell

I love when I find shells like this BANDED TULIP lying on the beach like this.

banded tulip off donax

Tonya, Beth and Max from Ohio had their bags filled with all sorts of treasures.

tonya, beth, max sanibel seashells

Wanna look in their shell bags? I sure wanted to too! COCKLES and CONCHS and CLAMS…

sanibel seashell bags

Max found this live LIGHTNING WHELK in the high tide wrack line so he walked it down to the water and gently put it in the water. Good for you Max! You helped save this beauty.

live lightning whelk max

I found local Sanibel sheller Lynn walking her very happy standard poodle Alexander with a pocket full of seashell treasure too.

alexander standard poodle lynn beach

Look at those pretty those COLORFUL MOON shells along with those candies and a mini TURE TULIP.

lynn seashells moons conchs

There was all sorts of bivalves scattered along the beach. I found this ATLANTIC COCKLE, PONDEROUS ARK and SOUTHERN QUAHOG together on the beach just like this…

atlantic cockle, ponderuos ark, southern quahog

This is the biggest DARK CERITH I’ve ever found. It’s one and a half inches long!

1 1/2 inch cerith seashells

 I was pretty pleased with what we all were finding on the beach near Donax Street today after the first day of west winds. Tomorrow might be even better!

low tide shell collecting

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Exploring New Seashells

Posted by on Jan 7, 2011 in Ark, Blind Pass, Cockle, Ponderous Ark, Sanibel, West Gulf Drive, Yellow Prickly Cockle | 36 comments

Yellow Prickly Cockle

Yellow Prickly Cockle

There were lots of YELLOW PRICKLY COCKLES still together scattered around the beach off West Gulf Drive access #6 yesterday. I always seem to overlook these because the ATLANTIC GIANT COCKLES catch my eye first. I’m looking closer at the bivalves (a shell with 2 halves) now since I’ve always favored univalves (snail shells like CONCHS and CONES).
Ponderous Ark

Ponderous Ark

See? I even gave this PONDEROUS ARK a second look when I normally would have passed right by it. Since the names are somewhat new to me (I would have normally named it an “ARK” shell but now I’m trying to learn the different categories too), we can learn these things together. So that means if I misidentify a shell, please don’t hesitate to let me know.

Shell Collector Alan

Alan (Maine)

I think Alan favors the univalves (or gastropods) too since he is showing off a FLORIDA CONE and some OLIVES. Check out his home made shelling rake!

Sanibel Anne shelling

Sanibel Anne (Sanibel... of course!)

I found Sanibel Anne working that same pile and watched her pull out that beautiful HORSE CONCH that she’s holding in her left hand. She makes shell mirrors and candlesticks from the shells she finds. Fun!

Crab trap beach

Over 20 mph north west winds washed up this pile of STONE CRAB pots on the beach two weeks ago. No wonder there are so many PIG’S FEET on the beach. These were the same winds that blew in the excellent shelling last month. We are expecting some good north west winds today “they” say about 16 mph (I’m not seeing anything yet) but maybe that’s enough for my JUNONIA to wash up. (?)
Shell beach to sand bar

We had a little NW wind yesterday so I ran up to Blind Pass to see the shells were washing up on the Sanibel side. You can see in this picture how close that point of the sand bar on the Captiva side is to Sanibel now. Maybe we should do a pool on who gets to the closest date that when the Captiva exposed sand touches Sanibel exposed sand.

Sanibel's Blind Pass beach

Yesterday there were more shells on the Sanibel side than on the Captiva side. Like I always say ….the beach changes by the day. You never know where the shells will show up.

Snowy Egret shelling

Snowy Egret shelling

I took this next picture as I walked the entrance to the beach where there are sea grape trees lining the walkway. I had to stop to take in the beautiful palette of colors the leaves painted on the path.

Sea Grape Leaves

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