original description
Alder J. & Hancock A. (1842). Descriptions of several new species of nudibranchous mollusca found on the coast of Northumberland. <i>Annals and Magazine of Natural History 9</i>: 31-36, available online at https://www.biodiversitylibrary.org/page/2312453 [details]
source of synonymy
Kienberger K., Carmona L., Pola M., Padula V., Gosliner T.M. & Cervera J.L. (2016). <i>Aeolidia papillosa</i> (Linnaeus, 1761) (Mollusca: Heterobranchia: Nudibranchia), single species or a cryptic species complex? A morphological and molecular study. <em>Zoological Journal of the Linnean Society.</em> 177: 481-506., available online at https://doi.org/10.1111/zoj.12379 [details]
From editor or global species database