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‎The Anatomy of Neopilina galatheae Lemche, 1957.‎

‎1959 71 p., 56 pls (depicting 169 figs), large 4to, paperbound (upper part spine somewhat worn). Galathea Report Volume 3. Includes also W.J. Schmidt, Bemerkungen zur Schalenstruktur von Neopilina galatheae (pp. 73-78, 2 pls).On May 6, 1952, ten living specimens of an extraordinary mollusc were discovered. While trawling off the Pacific coast of Costa Rica, the Danish deep-sea "Galathea" expedition hauled these specimens to the ocean surface from a depth of 3590 meters. They were given the name Neopilina galathea and their discovery has been described as "the most dramatic one in the history of malacology." Before that date these limpet like shells were only known as fossils and this was the first time a living representative of the class Monoplacophora was found. It's nearest fossil relative lived in the Silurian 400 million years ago. Needless to say that this anatomical study has great historical value.‎