@article {cite-key,
	title = {Die Familie der Mormyren. Eine anatomisch-zoologische Abhandlung.},
	journal = {M{\'e}moires de l{\textquoteright}Acad{\'e}mie Imp{\'e}riale des Sciences de St. P{\'e}tersbourg (7i{\`e}me S{\'e}rie)},
	volume = {7},
	number = {4},
	year = {1864},
	pages = {p.153},
	keywords = {Petrocephalus pictus},
	url = {https://www.biodiversitylibrary.org/page/13677285},
	author = {Marcusen, J.}
}
