Need help identify hitch hiker

[xxchrisxx]

Yesterday I purchase a very well established live rock , which consists of 4 clams some plant growth, (then the unknown hitch hiker). Please review picture , (what is it?)

 

[jack_aubry]

i vote tunicate poke it if moves it is probably a tunicate

 

[Crabs McJones]

Tunicate? Does it move around or stay put. Does it retract if you poke it?

 

[KJ]

Bivalve (Clam, Oyster, Mussel) and probably tunicate hard to tell.

 

[xxchrisxx]

Tunicate, I thought this at frist also , but the characteristic doesn't match the normal. I posted picture different angle view ,

I poke it lightly, the (pink)opening (mouth) moves , and the shell is hard

 

[Crabs McJones]

Tunicate, I thought this at frist also , but the characteristic doesn't match the normal. I posted picture different angle view ,

I poke it lightly, the (pink)opening (mouth) moves , and the shell is hard

Then I agree with @KJ a bivalve of some type

 

[xxchrisxx]

I believe so also good call , thank you guys appericate it .

 

[reef lover]

Nice lr!!