Dr Dave Johnson from the US National Museum in Washington just emailed me about an incredible eel that he and colleagues recently described. The fish, Protanguilla palau, is now classified in a new family, the Protanguillidae. It is one of the oldest eels (in evolutionary terms) known.
The video was taken in a cave at a depth of 35 m on a fringing reef in Palau. For more information on the paper go to the Proceedings of the Royal Society website.
Dave Johnson at the Australian Museum.