Knudsen, J. (1956) Remarks on a collection of marine prosobranchs from Senegal. Bulletin de l'Institut Française d'Afrique Noire, série A, 18, 514–529, 2 pls. page(s): 526, pl. 1, fig. 3 [details]
MolluscaBase eds. (2024). MolluscaBase. Philbertia marchadi Knudsen, 1956. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=435995 on 2024-05-02
original descriptionKnudsen, J. (1956) Remarks on a collection of marine prosobranchs from Senegal. Bulletin de l'Institut Française d'Afrique Noire, série A, 18, 514–529, 2 pls. page(s): 526, pl. 1, fig. 3 [details]