Micro reef clam ID?

[SauceyReef]

Well a little clam has attached itself to my Scoly during the past week unless I’ve been missing it for months. Any idea what this species can be?? It’s definitely alive as it closes when I block the light. I also have a squamosa but didn’t think there would be any way for it to spawn / reproduce. Are there known species of micro clams?

mind the red planaria

 

[shwareefer]

I have a couple rock boring clams amongst my rock ( they are small like 3/4" long) but they avoid the light so I don't think it's one of those. If you put them somewhere they can pull themselves along quite rapidly with a proboscis to where they'd rather be. Pretty bizarre like something from Tim Burton's mind.

 

[P-Dub]

Looks to me to be a Thorny Oyster.

 

[SauceyReef]

Wow I hope so! Spiny Oysters look super cool online.