Abstract
PROF. HUXLEY'S letter in NATURE of June 15 raises a very interesting feature of animal organisation which I have myself been studying recently. Briefly, in certain aspects of the growth of Crustacea there are gradients which do not decline uniformly and simply from front to rear in the manner originally put forward by Child for certain worms (“Growth and Senescence”, 1915: “Individuality in the Animal Kingdom”, 1916), but present a multiplicity with one or more peaks at points of great differential growth, the maximum lying at the level of the chelæ in males or in the abdomen at certain stages of female Carcinus.
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PERKINS, M. Growth-gradients and the Axial Relations of the Animal Body. Nature 124, 299–300 (1929). https://doi.org/10.1038/124299a0
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DOI: https://doi.org/10.1038/124299a0
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