Hearing is a basal vertebrate sense that first evolved in fish. Consequently, sound is perhaps the most efficient and wide spread sensory information cue in the ocean. Sound cues are used in a wide variety of contexts from reproductive signalling to using sound to find home. For fish that rely on acoustic communication for reproductive success, such as in the oyster toadfish (Opsanus tau), the ability to detect and localize sound is essential. More recently, it has been shown that the fishes lateral line has been implicated in sound detection. The primary goal of this research is to determine the acoustic sensitivity of the lateral line nerve to pure tones and play backs of natural calls in the oyster toadfish to gain a better understanding of how fish can potentially localize sound.