Brienomyrus adustus

<em>Brienomyrus adustus</em> is a freshwater weakly electric fish of the family Mormyridae, an ancient family of African fishes notable for their ability to generate weak electric fields used in object detection and intraspecific communication. This species typically reaches a maximum length of approximately 10 cm. Mormyrids are distributed across sub-Saharan African river systems, inhabiting rivers, streams, lakes, and swamps with a range of water clarity conditions. Many species are nocturnal or crepuscular, using their electrosensory system to navigate murky waters and locate benthic invertebrate prey including insect larvae, worms, and small crustaceans. Members of the genus <em>Brienomyrus</em> are generally found in West and Central African river basins. The mormyrid electric organ is a modified structure derived from muscle tissue. Details of specific habitat associations and the precise geographic range of <em>Brienomyrus adustus</em> remain limited in the ichthyological literature.