ID on a few Critters?

[litsoh]

Could anyone help me get an ID on some of these?

Personally I think this one is a sponge of some sort, but it could also be a tunicate?

My money is on a tunicate here. There are two other similar openings close by and they seem to all be connected onto the same organism.

This one stumped me, there seem to be some tentacles that move and explore from the opening. They originate from that white part of the rock to the left of the picture.

Your guess is as good as mine for this green thing.

Last but not least we have what I’m thinking is a pistol shrimp of some sort? Its left claw is definitely more pronounced than the right.

Thanks!

 

[Nihil]

It looks like a tunicate. If it moves at all it probably is a tunicate. The next one is probably a barnacle

 

[litsoh]

It looks like a tunicate. If it moves at all it probably is a tunicate. The next one is probably a barnacle

Don’t barnacles have more of a shell like outer covering? This one is definitely more fleshy.

 

[ISpeakForTheSeas]

Could anyone help me get an ID on some of these?

Personally I think this one is a sponge of some sort, but it could also be a tunicate?

My money is on a tunicate here. There are two other similar openings close by and they seem to all be connected onto the same organism.

This one stumped me, there seem to be some tentacles that move and explore from the opening. They originate from that white part of the rock to the left of the picture.

Your guess is as good as mine for this green thing.

Last but not least we have what I’m thinking is a pistol shrimp of some sort? Its left claw is definitely more pronounced than the right.

Thanks!

With the first two pics: If each blob is separate from any others and there are only two openings on each blob, then tunicates for the first two; if each is separate but there are more than two openings, then sponges. If they're connected and have more than two, it gets a little harder to say (the in-current siphons are the smaller openings in these cases):

colonial tunicates are typically very uniform, with all of the in-current siphons being roughly the same size and shape and being distributed very uniformly as well; sponges tend to be less uniform and more haphazard with their in-current siphons

For the third, it's a Spaghetti Worm (taxonomic family Terebellidae) - harmless.

The green is almost certainly a Parvocaulis sp. macroalgae; the only other option there is an uncommon Acetabularia sp., and that's much less likely here.

With the shrimp, I agree that it's most likely a Snapping/Pistol Shrimp of some kind (I can't say what kind from the pic; sorry) - if it doesn't have the crab/scissors-like claws, or if the tail doesn't look like an Alpheid Shrimp's tail should, then I would revisit the ID, but that seems unlikely here.

 

[litsoh]

With the first two pics: If each blob is separate from any others and there are only two openings on each blob, then tunicates for the first two; if each is separate but there are more than two openings, then sponges. If they're connected and have more than two, it gets a little harder to say (the in-current siphons are the smaller openings in these cases):

Here’s another angle of the second picture. The circled are the openings that all seem to be connected. They do close when touched as well so maybe not a sponge, unless there are some that react like that?

 

[litsoh]

There’s also this snail which I think may be a triton?