I was thrilled the other day to come across a Sharptail Eel while diving at the site we call "Three Tears".
I have frequently heard these creatures referred to as "snake eels" or "sea snakes" but they are not snakes, they are actually a group of eels that resemble snakes in shape but have gills like fish. (No flickering tongues!) I find them quite gentle and content to let divers watch them as they forage around for crabs and small invertebrates, but like any creature with teeth I am sure they could use them to bite if provoked or threatened.
Hopefully I will see more eels from this family and if I do I sure hope I remember my camera!