The books says these guys grow to 3½ feet in length. Uh, right. This guy was at least six feet long, with a mouth big enough to slide my whole hand into. His scarred head and ragged fangs spoke of a lifetime of life and death struggle on the reef. The book also says that undulated morays are one of the meanest morays, cautioning not to feed or play with these eels. I had not read the book before the encounter, but I needed no warnings to give this fellow a good deal of respect.