Hitchhiker ID please.

[Mike N]

First confirmed living hitchhiker (other than worms). Closes when touched.

Front:

Side:

 

[Lionfish Lair]

Is it perhaps a tunicate? I'm not sure what we're looking at exactly.

 

[Mike N]

Yeah sorry, not the best picture. Kinda looks like a clam to me. Bivalve?
Heres an outline of what im talking about:

 

[reef lover]

Bivalve...good guy

 

[Lionfish Lair]

Ya, if that closes up, it's a bivalve.

 

[Mike N]

Bivalve...good guy

Ya, if that closes up, it's a bivalve.

Thanks for your help.

 

[Lionfish Lair]

 

[Mike N]

Bivalve didn't make it through the night unfortunately :(