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Journal Article GEOGRAPHIC SPECIATION IN TROPICAL ECHINOIDS Get access Ernst Mayr Ernst Mayr American Museum of Natural History and Museum of Comparative Zoology Search for other works by this author on: Oxford Academic Google Scholar Evolution, Volume 8, Issue 1, 1 March 1954, Pages 1–18, https://doi.org/10.1111/j.1558-5646.1954.tb00104.x Published: 01 March 1954 Article history Received: 16 July 1953 Published: 01 March 1954
Ernst Mayr (Mon,) studied this question.