Guide to the whales, porpoises, and dolphins (order cetacea) : exhibited in the Department of Zoology, British Museum (Natural History), Cromwell Road, London, S.W / [drawn up by R. Lydekker].

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Guide to the whales, porpoises, and dolphins (order cetacea) : exhibited in the Department of Zoology, British Museum (Natural History), Cromwell Road, London, S.W / [drawn up by R. Lydekker]. Public Domain Mark. Source: Wellcome Collection.