I've found here washed up on a beach in the Isle of Man what I think might be the top part of a fish skull. It has a long 'snout', at the tip of which there are some minute teeth. It is 13cm long (from where it looks as if a backbone might join) and at its widest point is 5cm.
I have e-mailed photos to a local marine biologist and he is mystified.
In all my years of beachcombing and fishing I have never come across anything like this. Nearest I can get searching is maybe a sort of large pipefish.
Thank you, Lewis, but I don't think it is a dogfish. I'll check out the next one I find washed up, but I think the marine biologist here I sent the photos to would have known if it was.
Perhaps it isn't a fish. It smells, but not stinky-fish smell. Is it marine, even? Not a bird, though, it's too heavy.
Looks similar to a conger eel neurocranium,see http://osteobase.mnhn.fr/region.php?lang=en&idStructure=12&idTaxon=153 & http://www.taxidermy.net/forum/index.php?topic=282737.0