[Delphinus]

I'm not sure if what my T.max has is a pinched mantle or something else. Part of the mantle is sort of bunched up or scrunched up.

I'd try a FW dip but the clam is attached to an integral part of the reef rock structure (possibly an 8lb rock). Removal of the rock is a very dire option.

Is it worth trying to remove the clam from the rock for a FW dip? I fear damage to the byssal gland will prove fatal or something.

Need to do some more research before I commit to any plan of action, but, I'd love to hear any thoughts about the FW dip. Are there any alternatives?

...

There is a type of weird algae, looks somewhat like a red bryopsis, growing on the shell. I am wondering if it's possible that the scrunching is simply the mantle being irritated by the algae. Just in case this is a possibility, I took a razor blade and scraped the algae off near the shell edge.

I wasn't able to get a good picture tonight, will try again tomorrow and post what the clam looks like.