New Providence cusk-eel
The New Providence cusk-eel, also known as the Bahama cavefish, is a species of cavefish in the family Bythitidae. It is endemic to the Bahamas, where it has been reported from a small number of marine blue holes, inland caverns and chasms. It is the only known cusk eel species that can occur in surface waters; all others exclusively live in the deep parts of the ocean, or in underwater caves. It was first described in 1970.