Figure 7 in The Victoria Falls, a species boundary for the Zambezi Parrotfish, Cyphomyrus discorhynchus (Peters, 1852), and the resurrection of Cyphomyrus cubangoensis (Pellegrin, 1936) (Mormyridae: Teleostei)

Figure 7. Amplitude spectra for members of Cyphomyrus discorhynchus species complex (amplitude in dB re: strongest signal component = 0 dB; abscissa: frequency in kHz). (A) spectrum for the Lower Zambezi specimen's Electric Organ Discharges (EOD); (B) for one of the Batoka Gorge specimens' EOD. (C) Two specimens' spectra from the Upper Zambezi, Katima Mulilo. (D) Two specimens' spectra from the Kwando River, Kongola Bridge.