hitchhiker ID

[lorenz0]

sorry but i will have to grab a photo tomorrow if needed

but i have a hitchhiker i just noticed and they are a transparent tubular object (many of them) on the underside of one of my LR's. the look similar to a sponge and about 1/2cm long. any idea what these could be?

[Drock169]

sponge or tunicate

[Eyford01]

i would agree that it most likely sounds like tunicates if they are transparent, mine are little purple filter feeding tubes that hide from the light, extremely interesting biology

[lorenz0]

after searching and looking this up they for sure match up. thanks guys, just wanted to know before i took it out and nuked the rock but it sounds like these little guys are good