Figure 2
From: Hearing capacities and morphology of the auditory system in Serrasalmidae (Teleostei: Otophysi)

Audiograms of Piaractus brachypomus, Metynnis lippincottianus, Myloplus rubripinnis, Myleus schomburgkii, Serrasalmus elongatus, Serrasalmus spilopleura, Pygocentrus nattereri and Pygocentrus piraya. For greater clarity, standard deviations are not represented.