less, less, extant craniates.
Hagfish are members of class Myxini. Their closest relatives are members of , the lampreys.
Though craniates, the hagfish nevertheless lack and also are not gnathostomes.
Hagfish are also known as , though technically they are not .
Video (Their slime)
Video, Story (Predation by fish)
Video, Story (Predation by a mammal)
Video ( – "Curse of the Hex")