I've looked high and low and cannot find another image of the worms I have except one, which remains unidentified. I would love to concede these are bristle worms but the shape and markings are wrong, and a lack of bristles. I can't get a good close up but have included the one image I've found in the album as well. Hoping for an ID that gives me a little peace of mind!
https://imgur.com/a/vdktR
https://imgur.com/a/vdktR