Alder, J.; Hancock, A. (1843). Notice on a British species of Calliopaea d'Orbigny and on four new species of Eolis with observations on the development and structure of the nudibranchiate mollusca. Annals and Magazine of Natural History. 12: 233-236.
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Alder, J.; Hancock, A.
1843
Notice on a British species of <em>Calliopaea</em> d'Orbigny and on four new species of <em>Eolis</em> with observations on the development and structure of the nudibranchiate mollusca
