Help identify this worm

Jul 31, 2015 • 8:05 PM UTC

Unknown Location

140x Magnification

Microorganisms

Manu Prakash

I am a faculty at Stanford and run the Prakash Lab at Department of Bioengineering at Stanford University. Foldscope community is at the heart of our Frugal Science movement - and I can not tell you how proud I am of this community and grassroots movement. Find our work here: http://prakashlab.stanford.edu

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Part 1:
I just stumbled upon a strange “two colored worm” in algae mats on a rocky shore in Gulf of Mexico. It was a very agile worm; and I got some great videos on my Foldscope. I know the number of marine worm species is astronomical; but this is a really strange body. I don’t see a clear gut or mouth? Also the color transition from blue to brown is really sharp.
I really would love to know what species this is. Anyone has any suggestions. I was thinking of the “palolo worms” but they are far bigger. woth your suggestions – please leave comments below.
It’s one strange creature..
Cheers
Manu

Fig1. Collage of foldscope (140x) images taken on an iPhone 6.
Part 2: Here is the video of the live worm (most likely a nematode); I have multiple hints from several people which I am looking into. The background sound of the ocean makes for a dramatic affect; since this was imaged in a tide pool on a rocky shore.