Orange ribbon worm under boulder, intertidal zone (parallel lines on bottom of container 3mm apart).
This worm, which I think is Paranemertes peregrina (Mud Nemertean), between some rocks with Themiste pyroides (Burrowing Peanut Worm) and some Green Ribbon Worms, as you can see in the second photo.
I turned over a rock and found a little mass of these Emplectonema gracile (Green Ribbon Worms)! Each seemed to be about two feet long and very thin, and when I placed one in water, it curled up in corkscrew curls.
I looked under a rock during the minus tide and found this Tubulanus polymorphus (Orange aka Red Ribbon Worm), which stretched to 2'. I was careful to return the rock to its position.
Found in my new live rock. About 1.5" long.
Nemertea is a phylum of invertebrate animals also known as "ribbon worms" or "proboscis worms". Alternative names for the phylum have included Nemertini, Nemertinea and Rhynchocoela. Although most are less than 20 centimetres (7.9 in) long, one specimen has been estimated at 54 metres (177 ft), which would make it the longest animal ever found. Most are very slim, usually only a few millimeters wide, although a few have relatively short but wide bodies. Many have patterns of...