| Key to the species of Petrocephalus of Lower Guinea, West-Central Africa.(only from southern Cameroon, Gabon and Congo-Brazzaville) |
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| Hopkins, C.D., S. Lavoué and J.P. Sullivan 2007. Mormyridae. p. 219-334. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) The fresh and brackish water fishes of Lower Guinea, West-Central Africa. Volume I. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France, and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 800 pp. Ref No [81635] Key No. [1592] |