Alder, J. & A. Hancock. (1845-55). A monograph of the British Nudibranchiate Mollusca: with figures of all the species. <em>Ray Society, London.</em> 1-54, pls.1-48., available online athttp://www.biodiversitylibrary.org/bibliography/65015 page(s): part 1; pl. 26 [details]
MolluscaBase eds. (2021). MolluscaBase. Idalia aspersa Alder & Hancock, 1845. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2021) European Register of Marine Species at: http://www.marbef.org/data/aphia.php?p=taxdetails&id=748967 on 2023-06-02
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2023). European Register of Marine Species. Idalia aspersa Alder & Hancock, 1845. Accessed at: https://vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=748967 on 2023-06-02
original descriptionAlder, J. & A. Hancock. (1845-55). A monograph of the British Nudibranchiate Mollusca: with figures of all the species. <em>Ray Society, London.</em> 1-54, pls.1-48., available online athttp://www.biodiversitylibrary.org/bibliography/65015 page(s): part 1; pl. 26 [details]