Hagfish  (Myxini)  are  jawless marine craniates that have a cartilage
   skeleton, but no vertebrae.
   They  can  produce  copious  amounts of slime, which they clean off by
   tying themselves in a knot.
   Slimy hagfish:  <A ClAsS=MID Href="../../../med/Vid/Johnson4e/Wmv/Hagfish.wmv" oNClick="popurlt('../../../../med/Vid/Johnson4e/Wmv/Hagfish.wmv');txtcolor('hagfish1','gray');return false;" Id=hagfish1><iMg sRc="/images/wmplayer.gif" aLt='' boRDer=0></A>