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[details]
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[details]