Petrocephalus steindachneri is a species of electric fish in the family Mormyridae. It is native to the Rufuji River system in Tanzania.Kramer, B., R. Bills, P. Skelton and M. Wink, 2012. A critical revision of the churchill snoutfish, genus Petrocephalus Marcusen, 1854 (Actinopterygii: Teleostei: Mormyridae), from southern and eastern Africa, with the recognition of Petrocephalus tanensis, and the description of five new species. Journal of Natural History 46(35-36):2179-2258.
Size This species reaches a length of .
Etymology The fish was named after Austrian ichthyologist Franz Steindachner (1834–1919), who had described this species in 1914 but used a preoccupied name, P. affinis Sauvage 1879 (Stomatorhinus walkeri).
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