Hitchhiker ID please

[ZenGuitarGuy]

It's not the greatest pic, but the best I could manage. Small, butvmuch larger than a copepod, as shown in the pic. Moves slowly.

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[mcgyvr]

Can't tell.. too unclear of a picture..
Maybe stomatella snail http://www.lionfishlair.com/hitchhikers-guide/

 

[crawlerman]

bad picture, but google nudibranch. First pic looks like it might be one.