![](https://i0.wp.com/blog.pensoft.net/wp-content/uploads/2013/08/61019_web.jpg?fit=400%2C324&ssl=1)
This is an image of the two new species with their electric organ discharges (EODs). Brachyhypopomus walteri (top) has a longer, thinner tail and produces an EOD with both positive and negative phases. Brachyhypopomus bennetti (bottom) has a shorter, thicker tail and produces monophasic EODs.
Credit
John P. Sullivan