I am sure we all know the blue tube worm Spirobranchus cariniferus but there is also the Spirobranchus taeniatus which looks exactly the same except for one distinguishing feature:
single crest running the length of the tube and the pinkish-purple bar along the base of the crest

This has only been spotted once in Rodney so can we find any more? (The obs with more info)

NOTE: The blue tube worm Spirobranchus cariniferus has a blue bar as seen in the photo below

Happy Hunting!

Today @wild_wind posted up this obs taken at Island Bay, Wellington of a small red cucumber so something new to look for.

Found in the intertidal zone in a rock pool with neptune's necklace, you need really good eyes to spot this.

The first photo shows the critter

The next photo shows it in situ - look for the small red in the middle of the photo - this will give you an idea of how small it is!

Happy Hunting!