The Pollimyrus marianne lives in the benthopelagic, freshwater environment.
The recently discovered snoutfish Pollimyrus marianne is virtually indistinguishable from its vicariant sibling species P. castelnaui by general appearance, but well differentiated in the waveform of its communication signal, an electric organ discharge (EOD) of the pulse type. More
recently discovered Pollimyrus marianne (described by Kramer, van der Bank, Flint, Sauer-Gurth and Wink in 2003) are small members of the elephantfish family Mormyridae and produce electrical signals to aid navigation in murky waters. P. More