John P. Sullivan, Jansen Zuanon, Cristina Cox Fernandes
Zookeys
Figure 5.Distribution of examined specimens of Brachyhypopomus walteri sp. n. (blue circles) and Brachyhypopomus bennetti sp. n. (red diamonds). Common holotype locality for both species indicated by yellow star.
John P. Sullivan, Jansen Zuanon, Cristina Cox Fernandes
Zookeys
Figure 7.Paratypes of Brachyhypopomus bennetti. A Paratype tag no. 93-214 from INPA 39581 (TL 175 mm, LEA 150 mm), female, Lago Janauari, Amazonas, Brazil B Paratype tag no. 93-137, INPA 8940 (TL 190 mm, LEA 167 mm), Lago Janauari. Preserved whole specimens shown above close-up views of specimens immediately post-mortem. Scale bars equal 1 cm.
John P. Sullivan, Jansen Zuanon, Cristina Cox Fernandes
Zookeys
Figure 8.Paratypes of Brachyhypopomus bennetti sp. n. (top 3) and Brachyhypopomus walteri sp. n. (bottom 3) showing transparency of electric organ to transmitted light and comparative depth of the electric organ in the two species.
John P. Sullivan, Jansen Zuanon, Cristina Cox Fernandes
Zookeys
Figure 2.Electric organ discharge (EOD) waveforms of Brachyhypopomus walteri sp. n.and Brachyhypopomus bennetti sp. n. A EOD of holotype specimen of Brachyhypopomus walteri sp. n. B EODs of nine paratypes of Brachyhypopomus walteri sp. n. C EOD of holotype of Brachyhypopomus bennetti sp. n. D EODs of six paratypes of Brachyhypopomus bennetti sp. n. All are five millisecond traces with head positivity recorded upwards; water temperature between 21 and 23°C. Scale bars = 1 millisecond.
John P. Sullivan, Jansen Zuanon, Cristina Cox Fernandes
Zookeys
Figure 5.Distribution of examined specimens of Brachyhypopomus walteri sp. n. (blue circles) and Brachyhypopomus bennetti sp. n. (red diamonds). Common holotype locality for both species indicated by yellow star.