The Bigmouth Sleeper Goby is one of the largest gobies in the world, reaching over two feet in length and several pounds in weight. This is a diadromous fish that lives most of its life in coastal rivers and swamps. It is found in the Carribean sea, Coastal Puerto Rico, and the gulf from southern Texas to Brazil, along with the brackish swamplands and sluggish rivers of south Florida. Although usually born in coastal brackish or saltwater areas, it typically lives its entire adult life in fresh water.

Other Names: Bigmouth Sleeper, Bigmouth Goby, Giant Goby, Guabine