Clam Identification Help

[ev1016]

I am new to Tridacnids and brought back these six clams from Hong Kong. (Yes, I got a CITES permit and Fish and Wildlife inspection).

I did my best to verify the species but thought some input from the forum for confirmation would be helpful.

I believe I have 3 crocea and 3 squamosa. Any input is welcome.

 

[ev1016]

Here are the pictures

Here are the pictures

 

[ev1016]

I placed a quarter next to the clams for scale.

The shell lengths:

Sq 1 is 4 1/2"
Sq 2 is 3 3/4"
Sq 3 is 3 3/4"

Cr 1 is 3 1/4"
Cr 2 is 3 1/2"
Cr 3 is 3"

 

[scapes]

I don't think the last three are crocea's. look more like maxima's to me.

 

[quicksilverq]

that really looks like a squamosa. really small one

 

[quicksilverq]

i mean the top one is a squamosa. the others look like maximas.

 

[ev1016]

Can anyone elaborate on what features distinguish each species. I'm going on what the supplier told me and what was on my CITES permit.

 

[scapes]

http://reefkeeping.com/issues/2002-07/jf/feature/index.php

might help a little bit

 

[45commando]

they all appear to be Maxima sp. to me,HTH.

 

[Conky]

A picture of the scutes and byssal opening would be able to tell us a LOT more. Croceas have a very distinctive, large, C-shaped opening.

 

[johnnybravo234]

They all look like maximas to me.

 

[amashun]

Agree with all T.maximas

 

[Reef Mongoose]

top one could be squamosa, everything else looks like a maxima

 

[ChknWing]

ID

ID

Croceas will have almost no scutes (projections on the side of the shell). Did you get them from a clam farm or did you wild collect them or did you get them from a Far East LFS.

 

[ChknWing]

ID

ID

Ohh yeah and I'll agree they look like Maximas

 

[quicksilverq]

I would need a little better shot of the top one but it could be a maxima i am sure the rest are

 

[skinz78]

They are all maxima's. How much did you have to spend on them including the permit?

 

[ev1016]

Bysus and Shell Photos

Bysus and Shell Photos

Here are some shots of the clams' shells and bysus openings. They are in the same order as the first photos. The 2nd clam is attached to a rock fragment, so you can't really see the bysus.

http://reefcentral.com/gallery/data/500/184683Crocea_1_Shell.jpg

http://reefcentral.com/gallery/data/500/184683Crocea_1_Bysus.jpg

http://reefcentral.com/gallery/data/500/184683Crocea_2_shell.jpg

http://reefcentral.com/gallery/data/500/184683Crocea_2_Bysus.jpg

http://reefcentral.com/gallery/data/500/184683Crocea_3_Shell.jpg

http://reefcentral.com/gallery/data/500/184683Crocea_3_Bysus.jpg

http://reefcentral.com/gallery/data/500/184683Squamosa_1_Shell.jpg

http://reefcentral.com/gallery/data/500/184683Squamosa_1_Bysus.jpg

http://reefcentral.com/gallery/data/500/184683Squamosa_2_shell.jpg

http://reefcentral.com/gallery/data/500/184683Squamosa_2_Bysus.jpg

http://reefcentral.com/gallery/data/500/184683Squamosa_3_shell.jpg

http://reefcentral.com/gallery/data/500/184683Squamosa_3_bysus.jpg

 

[ev1016]

Photos of first 3 clams.

Photos of first 3 clams.

Sorry, Here are the photos

 

[ev1016]

Photos didn't upload properly, but links in previous reply work.