Furfaro, Giulia, Paolo Mariottini, Maria Vittoria Modica, Egidio Trainito, Mauro Doneddu, and Marco Oliverio. 2016. “Sympatric Sibling Species: The Case of Caloria Elegans and Facelina Quatrefagesi (Gastropoda: Nudibranchia)”. Scientia Marina 80 (4):511-20. https://doi.org/10.3989/scimar.04479.09A.