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Old 12/08/2003, 05:36 PM   #1
James Yeung
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Two more Clam IDs.

I have two more pics! The previous owner had them for more than a year 1 1/2 years and the big one got even bigger! The smaller one didn't grow much but appear to be very healthy. :-)

Thanks experts!

James


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Old 12/08/2003, 05:37 PM   #2
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Here's the small one:


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Old 12/08/2003, 05:48 PM   #3
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The first pic is a squamosa and the second one looks like a gold maxima.


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Old 12/08/2003, 05:54 PM   #4
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second is a crocea.


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Old 12/08/2003, 06:07 PM   #5
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That was my first thought but the mantle pattern looks more like a gold max pattern than a crocea. You may be right. Uhm, James, can you take pic of the shell of the second clam? Thanks


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Old 12/08/2003, 06:25 PM   #6
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without a better pic I would say Squamosa and Maxima


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Old 12/08/2003, 07:31 PM   #7
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Squamosa, crocea.


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Old 12/08/2003, 07:34 PM   #8
James Yeung
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Thanks all!

It looks like the small clam is a crocea.

The shell is covered in algae... It's hard to see, but the shell is identical to the T. Crocea I have.

I want to move this little clam in the middle, but it glued itself to the glass bottom pretty well. I take it the clam likes it there, so I won't disturb it.

Does anyone have any shell pics of a Maxima?

James


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Old 12/09/2003, 12:40 AM   #9
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Here is a shell view of a Maxima

You can see the shape is a bit skewed to one side.




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Old 12/09/2003, 11:12 AM   #10
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for me, the key to telling the small one is a crocea is not the shell or the color, but the shape of the mantle. look at a bunch and you'll see what i mean.


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Old 12/09/2003, 11:19 AM   #11
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I think the second one is a maxima based on the color and shape of the mantle. But a closer pic of the shell will help with confirmation.


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Old 12/11/2003, 06:40 PM   #12
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Yeah,I can always tell a clam by the mantle shape.


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Old 12/11/2003, 06:57 PM   #13
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What kind of clam is this?

Its a large picture, 220k be patient




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Old 12/11/2003, 07:02 PM   #14
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A guess at best would be that they are squamosa's. A picture of the shell as well will provide a lot more information in the determination.


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Old 12/11/2003, 07:07 PM   #15
James Yeung
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Dustin: Nice looking clams.

Newbie question... How do you post an image that shows up automatically (no clicking required?). I can upload my own pictures to my provider.

Thanks,

James


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Old 12/11/2003, 07:33 PM   #16
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A picture of the shell (which I dont have) would only make it harder! Those clams are hybrids. Squamosa x Maxima

It can be tricky identifying clams from the mantle or the shell, since they hybridize quite readily.


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Old 12/13/2003, 12:46 AM   #17
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Dustin's right, clams do hybridize easily. Telling a Crocea from a Maxima via the shell is not a good idea. Look at the hydial sensor arrangements, the eyes - little bumps on the mantle.

James' small clam is a hybrid between a Crocea and Maxima. It exhibit hydial sensors in both a linear line around the periphery (Maxima) AND has them randomly distributed across the mantle (Crocea).


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