Abnormal Derasa Mantle?

[bluemon]

So I recently got a Derasa, today actually, as a trade with another hobbyist.

I already have 3 maximas who are doing well, and always wanted a Derasa.

It’s still acclimating a bit, so the mantle isn’t FULLY extended, but I noticed some weird abnormalities in its mantle near its incurrent siphon.

It seems like there is another layer of flesh that works as a “hood” and is a bit taut with the right side of the mantle?

I took a picture but because of the clam patterns, I also illustrated what I see.

Anyone see mantles like these? Probably a weird defect, it seems to force some of the right side of the mantle into the center a bit.

Also included some maxima tax

 

[bluemon]

@OrionN Do you have any thoughts on this?

Definitely doesn’t seem like PMD, but wanted to be sure.

That part of the mantle has two layers it seems

Edit: I forgot to mention, the previous owner traded it away since his shrimp was picking at it and bothering it.

Could this be the result of that?

 

[goosemans]

It could have just got banged up from transporting it to your tank. Mine did something similar when I first got it in the tank. Keep on eye on it though!

 

[bluemon]

It could have just got banged up from transporting it to your tank. Mine did something similar when I first got it in the tank. Keep on eye on it though!

Maybe, could just be a tear.

I will. Not too concerned yet, and as long as it’s not PMD that could have put the other clams in jeopardy, I’m fine with it.

The seller’s picture seems shows a similar problem though, albeit with the mantle fully expanded so we’ll see.

Maybe it’s something it can grow out of?

 

[goosemans]

Maybe, could just be a tear.

I will. Not too concerned yet, and as long as it’s not PMD that could have put the other clams in jeopardy, I’m fine with it.

The seller’s picture seems shows a similar problem though, albeit with the mantle fully expanded so we’ll see.

Maybe it’s something it can grow out of?

Mine had a small tear in its mantle and it healed up in a week or so. You’ll see a small scar when it heals

 

[OrionN]

It is likely not PMD which started at he outside rather than the middle or near the siphons. What I see is the mantel right there is indented and does not get as much light. I had a similar looking Derasa. Mine was fine even if he has a slightly strange looking “face”.

 

[BlueBayouReefHTX]

Wow, I thought this was my tank for a minute. Looks just like my Derasa.

 

[minus9]

Yeah, it could be from a previous injury and formed a scar? It looks healthy otherwise.

 

[bluemon]

Thanks everyone.