Are they those horrid things which live off marine carrion? I remember going out on a fishing boat in the Baltic back in the seventies and some were brought up in a net. They were a greyinsh pink (or pinkish grey) and covered in masses of slug-like slime. Ugh! I've provided a few recipes for some of Jimi's postings but will shy away from these monster . . . /forums/images/graemlins/frown.gif
Posh name is Myxine glutinosa - gives you the general idea. Nasty feeding habits - get in through the handiest orifice then rasp their way out - a bit like a lamprey in reverse.