Petrocephalus haullevillii is a species of electric fish in the family Mormyridae, found only in Africa and only in the Kouilou-Niari and Chiloango River basins.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 Alphonse de Haulleville (1860–1938) who was the director of the Congo Museum (Tervuren, Belgium).
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