#apteronotidae

Black Ghost Knifefish (Apteronotus albifrons), family Apteronotidae, found in freshwater habitats in much of South America

This nocturnal fish produces a weak electrical field that helps it locate prey and find its way around in the dark.

Black Ghost Knifefish (Apteronotus albifrons)

...a species of ghost knifefish (Apteronotidae) that occurs in South America, ranging from Venezuela to the Paraguay and Parana rivers. A. albifrons typically inhabits rapidly flowing creeks, typically with sandy bottoms. Black ghost knifefish are nocturnal and are predators of insect larvae and other small aquatic invertebrates. Like other knifefish A. ablifrons is capable of discharging a weak electric charge via an electric organ and elctro receptors located across the body. This charge likely helps the fish locate prey in murky water.

Classification

Animalia-Chordata-Actinopterygii-Gymnotiformes-Apteronotidae-Apteronotus-A. albifrons