Xenomystus nigri
Xenomystus nigri is a species of actinopterygii in the family Notopteridae (order Osteoglossiformes).
Xenomystus nigri (Günther, 1868) is a species of actinopterygii belonging to the family Notopteridae (order Osteoglossiformes).
Common name. In English this species is commonly known as the African knifefish.
Taxonomy. The scientific name Xenomystus nigri (Günther, 1868) places this species within the actinopterygii lineage, among the most diverse vertebrates on Earth.
Description & ecology. As a member of Osteoglossiformes, Xenomystus nigri exhibits the group's characteristic adaptations: a actinopterygii fish Its biology reflects the demands of its particular habitat and life history within the family Notopteridae.
Distribution. The species occurs within the natural range of its lineage; precise localities and depth preferences are documented in the taxonomic literature for Notopteridae.
Human relevance. Like many fishes, it may be of interest to fisheries, aquaculture, the aquarium trade, or conservation, depending on its abundance and distribution.

