is this really deresa or a hybrid

[peterlin98]

Check out this big 8" deresa on reefermadness..

http://www.reefermadness.us./RMD05200053.htm

It looks to me like a hybrid of deresa and gigas. What do you think?

I'm looking to replace my 6 inch deresa...but this one may be too big..and it does not look like a true deresa in my opinion.

 

[rvitko]

I would second your opinion- though it could be just a Gigas. Derasas don't have such heavy dentition- usually a very flat profile.

 

[K. Lee]

It is definately not a "pure" T. gigas, unless I'm being fooled by the picture, because T. gigas don't have tentacles on the incurrent siphon. Do T. derasa and T. gigas commonly hybridize?

Also T. gigas have "windows" in the mantle, and I can't see any on this clam from the picture, but they may be present. The blue spots on the mantle are reminiscent of T. gigas patterning however, as is the excurrent siphon of this clam similar to T. gigas clams imo.

 

[Project Reef]

Straight Derasa.

 

[firechild]

Straight Derasa.

I concur. Thats without a shadow of a doubt a T. derasa.

 

[holeinone1972]

Straight Derasa also. The clams that are available to us now, are becoming more and more colorful. It is amazing.

Rob

 

[manderx]

their logo picture creeps me out.

 

[Lukan]

It is a Derasa. I have one similar to it. However, mine has a little bit more Green to it. I'll post a picture of it soon.

 

[ADS]

derasa! I have 6 similar to that 10-12". Adam

 

[peterlin98]

For those of you said that this is a deresa - do you have photos to show your deresa that also has the blue spots?

maybe this one is not that uncommon after all. I did not care for it - because it is too dark. Blue spots are nice - but I already have two T.gigas.

 

[holeinone1972]

Yes it is definately a Derasa. here is a close up of a mantle. I have 3 of these 8 inchers.

 

[Zoom]

Here is my blue rim Derasa with a 4"maxima next to it .
http://reefcentral.com/forums/attachment.php?s=&postid=988042

 

[Zoom]

And a close up

 

[Zoom]

With flash

 

[Zoom]

:eek1: