Left to right, top to bottom: Petrocephalus sullivani, Genyomyrus donnyi, Hippopotamyrus castor, Brienomyrus brachyistius

Left to right, top to bottom: Petrocephalus sullivani, Genyomyrus donnyi, Hippopotamyrus castor, Brienomyrus brachyistius
Photographer: Sullivan, John P. & Lavoué, S.Rights holder: Sullivan, John P. & Lavoué, S.

Representative Mormyridae: left to right, top to bottom: Petrocephalus sullivani, Genyomyrus donnyi, Hippopotamyrus castor, Brienomyrus brachyistius