?Worm? ID

[johnf3]

Hi all needing some help IDing this worm/cucumber/tunicate looking thing that came out of ocean aquacultured live rock. The larger side slowly moves and changes length (more inflated/less inflated). I haven’t seen any sort of mouth or feathers etc. Any ideas?

Thanks
JF

 

[jabberwock]

I think it is a peanut worm.

 

[fishywishy]

Im pretty sure thats a peanut worm?

 

[Crabs McJones]

Peanut worm