Pola, M., Tibiriçá, Y. and Cervera, J.L. 2023. Psychedelics sea slugs: Observations on colour ontogeny in two nudibranch species from the genus Nembrotha (Doridina: Polyceridae). Scientia Marina. 87, 3 (Oct. 2023), e072. DOI:https://doi.org/10.3989/scimar.05371.072.