The Night Shark (Carcharhinus signatus) is found in the tropical to warm temperate Atlantic (and possibly in the eastern Pacific), usually near the edge of continental and insular shelves at depths of 100 to 600 meters. In the western Atlantic, it occurs from Delaware to Florida, the Gulf of Mexico, the Bahamas, Cuba, and off southern Brazil and Argentina. (McEachran and Fechhelm 1998)
