Bouillon, Jean, María Dolores Medel, Francesc Pagès, Josep María Gili, Ferdinando Boero, and Cinzia Gravili. “Fauna of the Mediterranean Hydrozoa”. Scientia Marina 68, no. S2 (October 30, 2004): 5–438. Accessed April 27, 2024. https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/429.